I continually fluctuate between INTJ and INTP every few years, but as of right now:
_Introvert (89%)
iNtuition (50%)
_Thinking (33%)
_Judging (22%)
And no, I disagree with the "self-confidence" thing, I'm very arrogant these days. It's because there are so many feeling-oriented people around. The fact that people dote on the flash-in-the-pan crap until something new comes along is really frustrating.
I would still be more INTP if not for my disappointment in other people's opinion. Oop, there I got again, being arrogant, but a lot of people aren't really analyzing all of the details on a topic... they just go with their current thought on something as their entire opinion.