^ Agreed. I was going to remark earlier but couldn't. Drats! Lots of good advice all ways round.
Her behaviour doesn't seem INTJish to me that much. I know from my sis, and my understanding of INTJs, that they will seldom care to cause mischief because they'd sooner avoid it and people-- people who will cause headaches, whether they are right or wrong. The only time it comes into play, either mischief or displaying an eruptive anger, is when my sis has been pushed too far, especially if she can't explain herself (Te-)well enough or doesn't bother to. Even if others are being slighted near her, she won't care, unless their her friends or family. It's not her business (and she's always flummoxed at me for always getting involved with others. Or she gets mad at me because she knows I feel hurt that people are hurting each other. But the chastising is all out of love

). So, unless the bullies or morons have taken it too far and no one is doing anything to correct them, she might get involved. She'll do it for fun, even. Sarcasm and mindfucking are good friends...

For the most part, though, she'd sooner ignore it and move away to gain peace of mind from the sheer stupidity of people. Even if it's from me!

Especially if it's from my ISTP best friend! Regardless if she's wrong! Getting her to admit that when it happens, ahh, it's been torture! But she's learned to...grudgingly! However, she's a very mature kid, so I doubt most INTJs will allow others to be privy to their comprehension of being wrong, unless they are much more evolved. As for trying to exert control of their enviornment, sure, to a certain extent--and that includes people within them but not so much, I'd think, unless they care about them. And if there is use for it, something to be gained and if people are cooperative. Otherwise, I doubt they'll bother much, unless they feel they have to (school, work, responsibility of some kind).
I know that even if angry, however, my sister (and INTJs that I know of) will remain quiet and seethe. And think on it for a while before it's shown other than a tight expression on their face or avoidance in general.. Perhaps be curt with words but not engage in ways to incite discussion or argument. Unless someone initiates it, they won't bother. The path of least resistance comes to mind, when dealing with others. Even others they might like but aren't familiar with! #_# They might advise, even curtly, if asked or they care enough. As cafe said, though, my sis can gripe but only to me or people she trusts. She'd sooner not open up and share, though. She has high expectations of others as well. But she doesn't believe they'll work as hard or be as respectful, etc, so she mostly doesn't care-- if it's been proven that they won't or she can intuit it based on their interactions.. She'll mutter, sure, but she won't try to get others (parents or me etc) to get on her side. You're either on it or not but she's not asking and she doesn't care to ask. She doesn't want anyone's help. She'll cut you up if she pleases to. #_# But, of course, ages, sexes, backgrounds and maturity of INTJs as with all Types, will differ. Her childhood was pretty happy, thanks to moi

And I'm 7 years older + she's
been still spoiled by me, even though she is
not a spoiled kid. I wonder how the dynamics would change if she were the elder as cafe's daughter is...
:horor:!!!
But aside from that, rainfall, if your sis is an INTJ or not... You can still just approach her as a person, regardless of Type. The advice given to others is noteworthy. You can take any bit you'd like and run away with'em, or not. Ultimately, as it's been aforesaid, what you want to gain from your relationship with your sister and family is yours to choose. You can focus on what's going wrong or focus on what you'd like to make right or have made right for you. But so long as you remain as positive as you can, you can still move forwards without her or as limited with her as can be within your situation. As you say you're planning on moving out, focus on that and all the positivity to be gained from moving out.
Freedom! Away from her and your family. Perhaps, the change will be good for you all and they may alter their thinking of you after they realise your absence. Maybe they'll see your sis' bitching for what it is? Empty and trite? Eh. If not, it's their loss. Even, perhaps, your loss. But it'd be a loss you chose for yourself, if made consciously, but also
a gain for you as well as you'd likely be happier and free.
It's also good that you can admit that you might be the bad guy. As well that your sis may be a well meaning person who's just caught up in something she can't control and is inappropriately taking it out on you. Though, I wouldn't label you or your sister
the bad guy.

People are just messed up, Ha. But accepting your flaws and moving past them, accepting your sister's and moving past them, or your family's, that's a good step, I think. Good luck! Hope all goes well.
