When I take the online versions, many the questions I am not sure about at all because they would have different answers depending on the situation. That's what you get when you are 15, I guess. I know this much: IxTx. I usually get ISTJ but I don't seem to fit parts of the description.
This seems to imply that you lean more towards P than J. Indecisiveness is a trait that is very prevalent among Perceivers.
My top results:
1. INTP
2. ISTJ
3. ENTP
4. ESTJ
Notice the N and P are the least defined because the next type is ISTJ. The T was in all of the top 8 types.
INTP - Ti Ne Si Fe
ISTJ - Si Te Fi Ne
ENTP - Ne Ti Fe Si
ESTJ - Te Si Ne Fi
As we can see here, in the primary axis, Tx is present in all. Since you are certain that you are an introvert, let's narrow it down to INTP and ISTJ, and add the other introverted types with Tx in their primary axis. These include ISTP (Ti Se Ni Fe) and INTJ (Ni Te Fi Se).
I seriously think its near 50-50 because as far as going to school, etc. I need a schedule and I use it well; never tardy, etc. I also have my HS classes planned out (although very changeable) all the way through senior year.
Maybe the situation I described is that I often end up procrastinating and I think to myself (I'll do my homework later, but I'll get it done). I do start late, but I usually give up quickly. I think that it had more to do with how tired I was, so I would be unable to concentrate, provoking frustration?
That eliminates ISTJ, and leaves ISTP, INTP, and INTJ. INTPs and ISTPs are natural procrastinators (my INTP professor of beginning C programming proclaimed that he believes in procrastination).
INTJs can procrastinate too. If they do procrastinate, then they either have a form of ADD, or they have an underdeveloped auxiliary Te function.
When you think to yourself, what do you think about? If you usually think about what is, then you are likely an ISTP. If you think about what could be, then you are likely an INTx.
The one thing I don't like about the ISTJ descriptions is that I am supposed to continue with things until they are finished. I do get things done if I am supposed to for school, for example. But, I am on summer break, and when I decide to do something that takes time, I rarely finish it during the summer and I have no schedule whatsoever.
If there is no schedule during summer, than that likely eliminates INTJ. Not finishing projects is something that plagues xxxP types. Having Ne or Se in your primary axis promotes exploration over closure. Likely, INTP or an ISTP will not complete a project unless it is necessary. The single-mindness (sp?) of an INTJ will drive him/her to complete whatever they set their sights on. We can now eliminate the INTJ.
Stonewall -- If anything, the tests suggest that you are an ISTP. However it seems more likely that you are an INTP if you are drawn to this site. In fact, at 15, you have not fully developed your auxiliary yet and that may explain why you come up as S rather than N. I am not certain though. Robert Reed may be able to do more with this data.
I have to agree here. IxTP seems definite. ISTP seems more likely, but not by much. What is likely is that you have significantly developed your opposite perceiving function. You have likely learned how to use your tertiary Ni, assuming that you are an ISTP. But of course, Stonewall's implication that your auxiliary could be underdeveloped is also likely. If so, then we would witness a very weird occurrence, in which the tertiary function exercises more influence than the auxiliary. But I'm not sure if that is even possible.
I would say that you are an ISTP with the SvN scale near the center.
"The urge to dream, and the will to enable it is fundamental to being human and have coincided with what it is to be American." -- Neil deGrasse Tyson
intp '82er