In any case, as I said in my first post, one way you could proceed is to read through some profiles of the types you think are the most likely candidates and post about anything in them that provokes a notably strong "that's me" or "that's not me" reaction. It sounds from your OP like INTJ, INTP and ENTP may be the ones you relate to the best.
Okay, so I browsed through a couple of articles and noted the phrases that evoked a relatively strong "That's Me" or "Not Me" reaction. This is just a smidge of them though.
INTJ
That's Me:
1. Will be able to tell you almost immediately whether or not they can help you, and if so, how. INTJs know what they know, and perhaps still more importantly, they know what they don't know.
2. Free from the constraints of authority, convention, or sentiment for its own sake.
3. It is not easy for the INTJ to express their internal images, insights, and abstractions.
4. They usually choose to remain in the background until they see a real need to take over the lead.
5. Spend a lot of time inside their own minds
6. They dislike messiness and inefficiency, and anything that is muddled or unclear
7. See patterns and meanings in the world.
8. They don't take criticism personally, and are open to changing their opinions when they're shown a better idea or better way of doing something.
9. May be unaware (and sometimes uncaring) of how they come across to others.
10. May quickly dismiss input from others without really considering it
11. May apply their judgment more often towards others, rather than towards themselves.
12. While they are capable of caring deeply for others (usually a select few), and are willing to spend a great deal of time and effort on a relationship, the knowledge and self-confidence that make them so successful in other areas can suddenly abandon or mislead them in interpersonal situations.
13. Authority based on position, rank, title, or publication has absolutely no force. This type is not likely to succumb to he magic of slogans, watchwords, or shibboleths. If an idea or position makes sense to an INTJ, it will be adopted, if it doesn't, it won't, regardless of who took the position or generated the idea
Not Me:
1. May have little interest in the other people's thoughts or feelings
2. Able to concentrate and focus.
3. May look at external ideas and people with the primary purpose of finding fault
4. May take pride in their ability to be critical and find fault in people and things.
5. May believe that they're always right.
6. May hold grudges, and have difficulty forgiving people
7. Are perfectionists, with a seemingly endless capacity for improving upon anything that takes their interest.
INTP
That's Me:
1. They may venture so deeply into thought as to seem detached, and often actually are oblivious to the world around them.
2. Will often correct others (or be sorely tempted to) if the shade of meaning is a bit off.
3. Relatively easy-going and amenable to almost anything until their principles are violated, about which they may become outspoken and inflexible.
4. They spend considerable time second-guessing themselves.
5. An INTP arguing a point may very well be trying to convince himself as much as his opposition.
6. With a well-developed understanding of their environment and the ability to act very quickly, they may good athletes.
7. They see the value of principles that are not strictly logical.
8. The INTP gets "stuck in a rut" and only does those things that are known and comfortable to the INTP.
9. The INTP resists and rejects anything that doesn't support their own experiential understanding of the world. If they perceive that something is not logical, they reject it as unimportant.
10. They may unknowingly or uncaringly hurt people's feelings.
11. They may be completely unaware of how to express their inner world to others in a meaningful way.
12. They may be completely unaware of the type of communication that is often desireable and (to some degree) expected in an intimate relationship. If they are aware of the kinds of things that are appropriate to say and do to foster emotional bonding, they may be unable to appreciate the value of such actions. They may feel too vulnerable to express themselves in this fashion, and so reject the entire idea.
13. Under stress, they may show intense emotions that seem disproportionate to the situation.
14. INTPs do not like to lead or control people.
15. They're very tolerant and flexible in most situations, unless one of their firmly held beliefs has been violated or challenged, in which case they may take a very rigid stance.
16. They are not likely to place much value on traditional goals such as popularity and security.
17. They usually have complex characters, and may tend to be restless and temperamental.
18. Have unconventional thought patterns which allows them to analyze ideas in new ways.
Not Me:
1. Understanding, exploring, mastering, and manipulating systems can overtake the INTP's conscious thought.
2. They have a natural ability to focus and get "into the zone" when working on a problem. They can absorb their minds completely with an issue, and work it through with amazing speed and accuracy.
3. They are not overly demanding in personal relationships, and have simple daily needs. They are often easy and enjoyable to live with.
4. They reject people who think or live differently than themselves.
5. INTPs value knowledge above all else.
6. They hate to work on routine things - they would much prefer to build complex theoretical solutions, and leave the implementation of the system to others.
7. The INTP is likely to be very shy when it comes to meeting new people.
ENTP
That's Me:
1. ENTPs are usually verbally as well as cerebrally quick, and generally love to argue--both for its own sake, and to show off their debating skills.
2. ENTPs are basically optimists, but in spite of this (perhaps because of it?), they can become petulant about small setbacks and inconveniences.
3. ENTPs may sometimes give the impression of being largely oblivious to the rest of humanity except as an audience: good, bad, or potential. In general this is unfair – but it can be difficult to get an ENTP’s attention when they’re not immediately aware of you, especially for an Introvert.
4. ENTPs are also quick to spot a kindred spirit, and good at acquiring friends of similar temperament and interests.
5. he best approach in communicating with an ENTP is to be straightforward.
6. The ability to hold many points of view in mind and see their differing merits.
7. Able to give quick and diverse answers to any question of interest.
8. Seeing the many connections between events and things which are not immediately obvious to others.
9. A talent for innovative creation in writing, music or the visual arts.
10. Blindness to the needs and feelings of others not directly involved in the ENTP's current area of interest.
11. Tendency to become overly annoyed by minor setbacks or small things that have to be set right before the goal can be realized.
Not Me:
1. Being able to juggle many differing jobs or processes at the one time.
2. The ability to solve puzzles and problems that have no obvious way to resolution.
3. The ability to define schematically a new structure or design and know it will work.
4. Knowing and giving to others the very thing they need when they are not sure themselves.
5. The gift of knowing which new ideas or changes will enhance rather than detract from their relationships with others.
6. The inability to maintain a comfortable situation or relationship once its possibilities have been realized or exhausted.
7. A tendency to consider careful or meticulous thinkers as unworthy plodders or time wasters.
8. A tendency to be arrogant or boastful, or to demean those who cannot see the same answers.
Recently typed into this category...
INFJ:
That's Me:
1. Beneath the quiet exterior, INFJs hold deep convictions about the weightier matters of life.
2. INFJs are champions of the oppressed and downtrodden.
3. Though affable and sympathetic to most, INFJs are selective about their friends. Such a friendship is a symbiotic bond that transcends mere words.
4. INFJs have a knack for fluency in language and facility in communication.
5. Ability to see patterns and meanings in the world.
6. When given a goal or context, an INFJ is able to generate all kinds of possibilities. They're able to see the problem from many different angles.
7. They're not afraid of hard work, and will put forth a great deal of effort towards something that they believe in.
8. May be unaware (and sometimes uncaring) of how they come across to others
9. May quickly dismiss input from others without really considering it
Not Me:
1. They understand how others are feeling.
2. Perfectionistic and idealistic, they always strive for the best.
3. Able to concentrate and focus.
4. May always find others at fault for any problems in their lives
5. May believe that they're always right
6. May be tense, wound up, have high blood pressure and find it difficult to relax.
7. May hold grudges, and have difficulty forgiving people.
I was typed with this one a couple of times.
ENTJ:
That's Me:
1. Haha, I really couldn't a characteristic that evoked a strong "That's Me" reaction.
Not Me:
1. ENTJs have a natural tendency to marshal and direct.
2. ENTJs are often "larger than life" in describing their projects or proposals.
3. They see what needs to be done, and frequently assign roles to their fellows.
4. They have a drive for leadership.
5. There is not much room for error in the world of the ENTJ
6. Have difficulty seeing things from outside their own perspective.
7. ENTJs are very forceful, decisive individuals.
8. Able to cut straight to the chase in any situation and not be sidetracked by non-essential issues
9. A propensity for leadership which follows naturally from their ability to control and manage real time/real world situations
10. Second to none time and space management skills, everything is organized and in its place
11. May become so engrossed in a plan or ambition that personal needs and the needs of others are forgotten.
12. May believe only their own view of the world or a situation is correct, even to the point that they make it into a kind of dogma which must be followed by those around them.
A side note: I have been focusing a lot on personal growth these past few years, attending to my weaker traits, trying to enhance my stronger traits. I am a 20 year old male, born and raised in the USA. I have recently gone through two major (perhaps Life-Changing) events in my life; one emotional (ending a personal relationship with a girl for the first time), one spiritual (where I explored and vigorously tested the foundation and substance of everything I believed). I have changed more in this year alone than in the last ten years combined (and I don't think I am exaggerating). I have grown a lot, many of my values have changed, my world-view was altered and perhaps the lines that separate these personality types/cognitive functions have been blurred a little. Is it possible that this lends to my uncertainty on the subject?