Ah I see, how are your interactions like being near opposites? I have an inkling that I'm an ENTJ with well-developed Fi. Do you think it seems possible? I've noticed that and a lot of times, a few posters end up shoving their opinions into the OP's throat. I know I definitely use Te and Fi and I think, at my healthiest, I probably use Te. I have no idea really. I didn't know at that time but it's all seeming a bit too cruel. Haha yeah. Yup, that sums up me at my house. Though at school, with people, I'm much nicer. Oh why'd you feel like you had to be violent? I feel like that in order to get what I want done. I'm not sure but I feel like I'm more of an ENTJ than an ENFP. I feel like I'm more of a J than a P.
The interactions are generally indifferent and rough, but that isn't detriment to our relationship, I've learnt to communicate with him in a Te style, and he's learnt not to push my buttons. We both work well when there is consistency. ENTJ with a well developed Fi? My honest opinion, it's possible but unlikely given your age. Not because a person is incapable of it but the mind just hasn't reached that point of development yet, generally it still has other things to work through first. People who go through rough at a young age don't exactly develop any faster, they just go on a little different path depending on the extremity of circumstances. They adjust to survive, if that makes sense. In MBTI these situations would generally cause functions to be blocked, or hampered.
Right now the theory would dictate that both your dom and auxiliary would be still developing, with a little tertiary aswell, maybe some inferior. But primarily Dominant and auxiliary. Auxillary would be either already in a major growth point or starting too, so how much do you relate to Ni? I think of all the functions I found that the hardest to understand, but I've seen people claim Fi mistakenly for Ni. So I suggest that looking into that would be good, just so you can be more certain as to whether or not it really is your inferior being developed. This is all assuming your ENTJ also.
How well do you score with Se as well? And Ni? Could you list your functions by preference? If you are ENTJ, feeling that you use Te most at your healthiest is a good sign. Also I'd ask, how often do you experience Fi negatively, is it more often experienced that way than in a healthy way?
I'm relatively young as well, and my own inferior function was always present but it's development into more positive action always came in spurts, and stress. So perhaps your Fi could have developed. But I know even from my own experiences that stress at a young age didn't necessarily develop my Te any quicker, it hampered my Ne, inflated my Si, and Fi had trouble filling in the blanks from lacking input from Ne. Once the stressful situation less, it was a period of rebuilding and growth for those functions. Later on came Te in the form of grips and flair ups. I'm still learning to tame it. So this is just an example of how the process could work. Take me back a year, I communicated very much the same as flameskull has in this thread (I still do.) as inferior got brought into heel, that changes abit however. This signals one of those spurts in growth that I mentioned.
Yeah, posters including myself just feel confident in what we see, don't really put as much effort into gathering information because the reality is it isn't exactly important for us to do so. This isn't always the case, evidently its common enough to happen in every thread I've seen so far. It's just that you'd probably fit some predefined image they already have, so they put that suit on you because in their eyes it suits you the best, whether or not you actually feel comfortable in it. Like when a relative buys you clothes which don't fit, so you feel like crap because you can't wear it and show that you appreciate it. Except in this case they are insisting you wear it haha. (Rough metaphor.)
It is cruel, it just shows that they made you partly responsible for their happiness, which is solely their own. A child doesn't need or understand that very well. Parents are ment to be abit selfless, but anybody can have a kid, and not everybody is cut out to be a parents. That's just how reality is. All you gotta worry about is your own happiness, and not make the mistake to blame your flaws on your upbringing. Although it shouldn't be that way, the reality is it's doing exactly what your parents did, and that was making someone else responsible for something which only you can sort out. I've never seen someone who blamed their shit parents for the way they are actually be happy, the ones who understand it and let it go are the ones I see content and comfortable with whatever they suffered.
Nothing wrong with being a rebel anyhow, as long as you don't rebel against the good things that come your way.

That's just, anarchy haha. I bet when people step on your toes that niceness changes fairly quickly? Quick answer to your question. I felt that I had to be violent because frankly, I kind of had to be. I was the youngest kid on the block by a few years, and it was a little rough in the area. Kids would give you shit if they thought they'd get away with it. It wasn't the best way about it but it worked, and people learnt not to anger me. The main reason behind it though was that there was a schizophrenic back at home who encouraged me that it was the right way about things. He saw me as weak, so he did what he thought was best as a male figure to teach me to be what he saw as "strong". This was not my dad mind you.
Now I'm fairly the opposite. I just tolerate peoples shit, and snide comments without taking it too heart. I had alot of trouble doing that to begin with though. So you definitely feel more J than P? ENTJ still seems fitting so far. I'm trying to think of other type possibilities however. What else do you find fits, atleast description wise? This is to atleast give an indication.