Sigh, that's a long story...
About 3 years ago, in my first exposure to a MBTI test I tested as an ISFP and INFP.
I read a few descriptions and thought, okay this sounds good enough, so I'll go with it. Note I didn't know anything about typology then and I didn't even bother with reading about any other types in detail. By the time I reached INTPf and registered on a whim, I settled for INFP as my type.
But then the more I got into this and other forums, I started noticing something was off. I found it unable to relate to any INFPs I observed, and the INTPs positively seemed like my kin.
I started to look into it more. At that time I was heavily depressed and just generally out of it, experiencing a lot of heavy emotions lead to assume I was a feeler. I also thought I was just too stupid and illogical to be an INTP. I got my hands on the the cognitive functions test and my Ti and Fi scored perfectly equal, adding to my confusion. I was still hanging on to the idea of being too emotional and not logical enough to be an INTP, and the only solution was that I was projecting something, that I just wanted to score high on Ti because I was some kind of malformed F.
The more I read about Ti, the more I thought "This is soo me, it's not even funny", but then there was still this voice questioning my capability to make an accurate assessment on this endlessly. In the end I couldn't make myself settle for anything, because I could literally ponder it endlessly, Ti-Fi seemed like different sides of the coin, and I couldn't settle for something if I wasn't 100% sure it was correct.
I also kinda rejected the idea of having Fe because I couldn't stand it, and I thought that just can't be me. But in the end it was all Fe that was messing with my head.
Then I read about Quenk's inferior Fe grip, and it was like a fucking slap in the face. It all fell in it's place, the excessive emotionality, the depression, the circumstances that led to it, it all fit to a T. (cue lame pun
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)
By that point several people I discussed with started debunking my INFP typing with arguments that I couldn't ignore, I was getting into typology extensively, everything seemed to confirm it, and INTP seemed more and more like THE ONE.
Recently, I learned of the falsification of type, and that too was ridiculously accurate. I guess I am malformed after all, just differently than I previously thought.