ddspada
Citizen of the Universe
Hello. 
I've known about MBTI for a little over six months now, and throughout most of this time tests have suggested I'm an INTP. I've read several dozen descriptions of all types and in general identify the best with INTP, then with ENTP. My family seems to agree with that, but they've also said INXJ descriptions fit me well enough.
(All of) this worries me. Half a year ago I knew nothing about MBTI and was getting along more or less fine, but now that I do know, I believe that trying to improve-as-an-INTP might do me more harm than good if I'm not actually an INTP (independently, the knowledge I've gained about other people is nigh-priceless).
All that aside, or as aside as can be, I often ran into trouble when trying to answer test questions...
"Do you get your energy from the inner or outer world?" My answer is "both". I enjoy talking to (a few select) people, taking classes, going to school, debating with my professors; but I also enjoy sitting at home, reading 12 hours per day, brooding over my own musings and playing the guitar all day long. I enjoy the former somewhat more but find the latter somewhat less tiring; I don't think I can accurately give an answer one way or another, although I most often spend my free time alone. Moreover, I'm afraid I'm biasing my answers by rationalizing what I understand to be my probable introversion preference.
How about "Freely following instincts and impulses"? I'm not even sure I understand fully what the question means. If I crave a cigarette/ a cup of tea/ a meal I go and get it; but that doesn't strike me like the sort of thing they'd be asking. I don't go out with friends -- I have maybe two friends, but hundreds of acquaintances. Heck, I barely go out, period. I administer my sex drive mostly in private. I'm not too sure whether I don't understand exactly what they're asking because my mind does not function in that realm (Se); or because I have biased myself to believe so over the last half year, never having really thought about it too much before; or because a probable dominant Ti leads me to want a more precise statement.
I've come to accept that reaping the full benefit of MBTI involves a deep understanding of type, especially of one's own type, and that such an understanding can hardly come from just taking a couple of tests and agreeing with almost horoscope-like descriptions.
My questions, then -- if anybody is still reading -- are almost embarrassingly simple:
> How to tell apart Ni from Ti? I've read hundreds of hours about CFs, but I still have doubts as to which of the two (or maybe both) is present in me. I don't understand what one can do that the other can't, or if they even hold a relationship that can be expressed in such terms.
> How to make sense out of test questions I don't really relate to? If I don't understand a question at all, what can that tell me?
> If you are an INTP, how did you diffuse doubts about being of another type?
> If you are not an INTP but at one point thought you were, how did you come to discard INTP as a possibility?
English is not my first language. Sorry in advance for any inaccuracies (or, more likely, verbose descriptions of concepts I can't express more succinctly).
Any answers, advice, insight or suggestions (like trying to write less, I get that a lot
) would be much, much appreciated.

I've known about MBTI for a little over six months now, and throughout most of this time tests have suggested I'm an INTP. I've read several dozen descriptions of all types and in general identify the best with INTP, then with ENTP. My family seems to agree with that, but they've also said INXJ descriptions fit me well enough.
I soon realized that typing based on the cognitive functions is more accurate and precise than typing as per the four dichotomies. CF tests suggest XNTP>INTJ>>>ISTP. I'm suspicious of CF tests, though. They might not be good for much if I a) already have a basic notion of how INTP CFs work and b) already believe myself to be an INTP.
I do identify plenty with Ti and Ne, particularly with Ne.
I do recognize Ti in myself, but perhaps not as clearly because it's Ne that almost vehemently gets attention, and perhaps also because, assuming I do have it, it's a modus operandi so deeply ingrained that it's not easy to consciously become aware of it. I enjoy fine-tuning definitions and concepts, analyzing grammar and finding all possible causes for an event. Moreover, writing with "big words" and non-linear grammatical constructs comes naturally; I like to get my point across in an exact manner.
I suspect my touchy-feely side -- however much or little I may wish to acknowledge its existence -- falls nicely into Fe descriptions. The way in which I think I recognize, compare and apply patterns sounds like Ne-Si, but Si tertiary descriptions of INTPs don't sound as 'me' as the other three CFs. I am only 20 years old currently, though, so I don't want to rule out the possibility that Si manifestations aren't very clear yet.
I am afraid I might be mistaking Ni and Ti, perhaps being an INXJ who can give Se an appearance of Ne. IIRC, Jung said he himself was a Ti-dom, but many folks think he is INFJ. Furthermore, I grew up in a household with three SJs. The way I behave in school seems Te-ish, but it might be traceable to the influence my family had on me.
I do identify plenty with Ti and Ne, particularly with Ne.
((as anecdotal confirmation, I refer back to a classmate asking me for help in theater class (mandatory in high school)). She couldn't "get into character". I talked to her for over an hour about personality, the concept of a Reason common to all humankind, how our emotions are projected and how to speak through a character. I mentioned the history of greek theater (including the origin of theater masks and of the word 'person'), the meaning of Tarot cards, the concept of Four Souls / Mitama, and the plotlines of Romeo and Juliet and a play by Alejandro Casona about suicide. Almost needless to say, I thought I was offering possibilities for her to open up to the idea of her character and improve her performance, but she just gave me the most puzzled of looks after I was done. I even paused every few minutes asking whether she was understanding or had any questions. 
Many descriptions of Ne as "brainstorming out loud" take me back to that day. Friends and family have compared me to Socrates, who is most likely ENTP. Also, the way in which I most comfortably write seems Ne to me. I'm writing inside a parenthesis inside a spoiler, and I've edited this post upwards often fifteen twenty times before finally posting it).

Many descriptions of Ne as "brainstorming out loud" take me back to that day. Friends and family have compared me to Socrates, who is most likely ENTP. Also, the way in which I most comfortably write seems Ne to me. I'm writing inside a parenthesis inside a spoiler, and I've edited this post upwards of
I suspect my touchy-feely side -- however much or little I may wish to acknowledge its existence -- falls nicely into Fe descriptions. The way in which I think I recognize, compare and apply patterns sounds like Ne-Si, but Si tertiary descriptions of INTPs don't sound as 'me' as the other three CFs. I am only 20 years old currently, though, so I don't want to rule out the possibility that Si manifestations aren't very clear yet.
I am afraid I might be mistaking Ni and Ti, perhaps being an INXJ who can give Se an appearance of Ne. IIRC, Jung said he himself was a Ti-dom, but many folks think he is INFJ. Furthermore, I grew up in a household with three SJs. The way I behave in school seems Te-ish, but it might be traceable to the influence my family had on me.
(All of) this worries me. Half a year ago I knew nothing about MBTI and was getting along more or less fine, but now that I do know, I believe that trying to improve-as-an-INTP might do me more harm than good if I'm not actually an INTP (independently, the knowledge I've gained about other people is nigh-priceless).
All that aside, or as aside as can be, I often ran into trouble when trying to answer test questions...
"Do you get your energy from the inner or outer world?" My answer is "both". I enjoy talking to (a few select) people, taking classes, going to school, debating with my professors; but I also enjoy sitting at home, reading 12 hours per day, brooding over my own musings and playing the guitar all day long. I enjoy the former somewhat more but find the latter somewhat less tiring; I don't think I can accurately give an answer one way or another, although I most often spend my free time alone. Moreover, I'm afraid I'm biasing my answers by rationalizing what I understand to be my probable introversion preference.
How about "Freely following instincts and impulses"? I'm not even sure I understand fully what the question means. If I crave a cigarette/ a cup of tea/ a meal I go and get it; but that doesn't strike me like the sort of thing they'd be asking. I don't go out with friends -- I have maybe two friends, but hundreds of acquaintances. Heck, I barely go out, period. I administer my sex drive mostly in private. I'm not too sure whether I don't understand exactly what they're asking because my mind does not function in that realm (Se); or because I have biased myself to believe so over the last half year, never having really thought about it too much before; or because a probable dominant Ti leads me to want a more precise statement.
I've come to accept that reaping the full benefit of MBTI involves a deep understanding of type, especially of one's own type, and that such an understanding can hardly come from just taking a couple of tests and agreeing with almost horoscope-like descriptions.
My questions, then -- if anybody is still reading -- are almost embarrassingly simple:
> How to tell apart Ni from Ti? I've read hundreds of hours about CFs, but I still have doubts as to which of the two (or maybe both) is present in me. I don't understand what one can do that the other can't, or if they even hold a relationship that can be expressed in such terms.
> How to make sense out of test questions I don't really relate to? If I don't understand a question at all, what can that tell me?
> If you are an INTP, how did you diffuse doubts about being of another type?
> If you are not an INTP but at one point thought you were, how did you come to discard INTP as a possibility?
English is not my first language. Sorry in advance for any inaccuracies (or, more likely, verbose descriptions of concepts I can't express more succinctly).
Any answers, advice, insight or suggestions (like trying to write less, I get that a lot
