My advice would be to think rationally.
We've all got one shot at life, and as bleak as it may seem right now, you've got to look ahead and try to see how bright the future is.
Another friend I have is suffering under an abusive father after his mother died of cancer. He's pushing on wards though despite having had a very dark period and I haven't seen him this happy in ages just because he's doing things one step at a time and focusing on what he wants.
Don't waste your potential.
Evaluate the situation, get rid of anything negative and don't do anything illegal.