Your posts about your findings concerning cognitive psychology or MBTI are most of the time by a rather sincere nature. You seem to not easily be distracted in your opinions and most of the times, I recognized that you do not take new inputs into your theories from just anyone.
I would definitly rule out Ne for you.
When it comes to Fe and the use of Ti in an INFJ, I really do not think that you are one. From my experience INFJ are good at Ti, but get exhausted with it after some time. I only know one female INFJ for sure and she likes to analyze and abstract like I do but only until certain points.
Really hard to say, because I do not know you personally. This whole Ni thing pretty much requires you to have an own special view on the world and I remember you typing yourself as NiTi, where you changed MBTI type theory in a way that it can best describe yourself. That gives you the Ni tag in my opinion.
So I would conclude that you sometimes have stron opinions about things and need your time to think new ideas through to change your opinions. You seem to have a good knowledge of people and their personality but your knowledge always comes internalized and subjective and you wont change things easily without given them some time to be thought through. That gives you in my opinion a definite J tag. (I had problems sometimes when reading your posts, because I thought you to be very judgemental and not thinking every options carefully through. No heart feelings though

)
The question for Fe can be answered really easily in my opinion. I have not really figured out how it comes within someone's talking style but your personal environment can answer that question.
Is your room clean and do you like it to be clean ? Do you value an environment you feel comfortable at ?
Most Fe Users do that from my experience. My sister for example an ESFJ is pretty messy but she wont leave the house after 5 hours in the bathroom and her furniture is very steril. You sometimes feel like being in a hospital.
My room for example is a total chaos. Things lieing everywhere around in total disorderliness. But I like to have it clean. So I do all the basics to get rid of mud.
In my opinion you are INFJ. For an intp you lack that certain twitching eye, I feel in the presence of Ne users and I would never give you the p tag
Hope I didnt offended you, just wanted to give my opinion to support your quest