You seem to be very confident with your type, but when I think about 10 months back I was as convinced as you that I'm INTP and a 5w4 as well. I only found out that I'm in fact ENFP through a cognitive functions test.
But the point that you don't relate to the ENFPs you met is quite persuasively. I got several responses from family members that I'm like my Dad (another ENFP) and my brother like my Mom (most likely INFP and ISFP). Also one of my best friends (surprise, he's ENFP) asked me why we are so similar. So there's not much doubt here about my type.
That's really interesting right now. I can't imagine how an INFJ 7w6 would be like IRL, maybe more reserved and less 7 on the outside. Have you compared yourself to other INFJs on this forum? How do you differ from them and how do you relate to them?
I literally JUST finished a long 2 hour talk with an ENFP who knows me personally who is into typology as well. And no, he didn't think my type was wrong. We talked about Fi as well, and some spats we've had, and spats I've had with INFP irl friend. And I gotta say. Fi is NO. LOL! I don't think you intended to sound condescending, though it could have been perceived that way according to him. and there is that difference. I might see something as condescending or rude, but I don't care. It doesn't irk my feelings. He also said, to be fair I must admit he's right, that because I came on here LOUD and wrote as comfortable as I do on PerC, that that was no doubt off-putting. Wasn't my intention. More or less, it's like I'm in that "I'm on a mission" mode. And so I do apologize in that, I realize I'm super intense and disregard the larger picture sometimes when I'm on a mission (what purpose/thoughts/goals in my head).
We laughed at the idea that I can not stand surprises such as unplanned trips, and that I am NOT spontaneous and how this drives every P type I've ever known nuts! lol. We also talked about my impression of ENFP/INFP. You see, I have a love/hate thing with NFP. You guys crack me open like an egg, but then you rummage and make everything messy. I like order and symmetry and clean. It's like sloppy kisses. YUCK. gross. So it agitates me how NFP can probe. It seems so messy the way you think. Not you you. but ya know.
Anyways, whenever I stand next to an NFP. They seriously make me feel like shit. Fi from my experience is SO intense. That Fi just feels so INTENSE. I just can't relate to that at all. Notice also, the only kind posts here are mostly from NFP. You guys seem to internalize other peoples feelings and sympathize deeply. It's like, I have intense depth to my character/personality. But Fi seems to be this DEEP WELL of INTENSE feeling. and it's intimidating. It's like, what do I do with that? I adore it, and admire it, but there's no way to honor it because I just don't know how. I don't FEEL in that type of way.
This brings me to a point. The point that I really should recognize my arrogance. In that, I come on here with a goal, and I bust out this whole slue of thought without any regard that no one here knows me/my writing style etc. I suppose it's because I'm in a "problem solving" mode. And kinda don't care (feelings detached). But when other people get upset, I get upset. So I suppose I would only be right to recognize that and take it down a notch. Know that, if my life circumstances were different, I would preoccupy myself (distract myself) with taking on this "issue" and attempt to dissect it etc. in the way that I am. I can pick people's brains online so to speak, with the distractions of irl situation. If things were different, I would probably just be by myself reading copiously.
Finally, I realize whatever my type is, it isn't a common combination. I seem to have a pretty big storm behind my eyes always. I'm cerebral in nature. And so I look to online as an outlet, and an opportunity rather than a community. I suppose I'm an opportunist

I don't hesitate to plug in and think/collect/think/learn online because it's different than in real life. In real life, I take great care to fit in, to do what I'm supposed to, to do what's right, to keep to myself and take careful attention to communication. There's a huge disparity between online / offline. Even skype, every time I've ever skyped with anyone from the forums, I get the same surprised response. I'm so outgoing but behind skype it's more in real life. And so I tend to be that version where it takes me a long time to warm up/ open up etc.
Anyways. I suppose I'm attempting to apologize and recognize my selfish demeanor. I hope no one takes it personal. I have no qualms admitting that I'm using you. LOL! Not in a malicious way! Anyone can use me too online for whatever my mind might be able to serve them with. I hope I didn't communicate my sentiments THAT poorly. I'm just being honest and I do care about people so please don't interpret this as an insult. I am probably not articulating this well at all. :/
On the subject at hand. I so far have concluded that I'm definitively a self preservation type. But I'm not so sure if I'm social or sexual with that, and in which order. From this point on, I think I have to accept the fact that I'm not going to get an easy answer overnight. (that's my impatient/lazy part of me that wants that

) So, I want to thank everyone for their input, the thread links and videos. I do appreciate the kind thoughts from some and authentic want to help solve the puzzle. I hope I don't seem super narcissistic stimming about talking about myself. It's really that in my mind, I just think it's a logical conclusion to make, that if I understand my motives/make up better, I might be able to resolve some internal confusion. I hope that makes sense.
regarding the quiz PM'd me. If I submit it to that person, I'm gonna just put it out there as a thread on PerC probably, or here. But I prefer to see every perspective and angle before drawing my conclusion as to what I feel fits and makes sense (to me, knowing all the private angles I'm not comfortable dishing out there). yeah, I know. I put SO much out there people tend to think that's it. *shrugs* not sure what to say other than, it is what it is. People are by and large simple to understand. A person on the other hand, is a little more complicated.