@skp,
how would you support yourself if you're still in school?
Keep below their radio, play it cool and stay out of their way. If you've gotten yourself in trouble, knock that **** off so they aren't on your ass, and so you don't do something stupid after you're 18, that will be on your record and keep you from getting good work.
Graduate high school so you can get a decent job, then move out.
What's going on now all of a sudden that makes it so much worse than the past? If it's no worse, tough it out.