are you living with your family? is there a way for you to get out of there if you are? maybe stay with friends or other, more supportive impartial, family for a while?

it does sound VERY rough having to deal with so much and feeling attacked from all sides like that.

for dealing with your anger, there are a few things you can try.. write down all your feelings then take the paper and destroy it - rip it burn it scribble on it with heavy markers.. you can use art to draw your feelings or paint. you can find some old junk or something and take it somewhere (like a dump? or just out to your trash can?) and break it. beat the heck out of it, smash it, destroy it, and toss it. if you want to simply find a way to calm down, again art is good. or anything that occupies your hands and mind just enough to distract you but not so much it's challenging you. something like coloring or knitting. coloring is one of the most calming activities people can do. sounds silly, but it's true.

anyhow, i hope you find some way to relieve these intense feelings.