I have controlling and abusive parents, should i stick it out until 18 or leave now?

Get advice: If you are in physical danger, develop an escape plan now. Keep a diary well-hidden. Talk with your family physician (phone), a high school guidance counselor, a pastor (if decent and reality-focused), other adults who are there to be helpful and relatives. The most cynical, and often the most helpful, approach is to pretend to love them until you can emancipate. Good luck.