Trying to get help might actually escalate your situation to even worse. Some advice you have got is clearly from people who didn't give it much thought and like to entertain themselves with revenge fantasies.

Your best option, imho, is to move out. You are soon 18, and after that nothing can stop you from leaving. Your parents can't be reasoned with, so do not waste your energy to that. What I'm worried about is that they purposely keep you so tired you don't have the strength to leave, and that is the whole intent. They want to have a full control over you. It is insane, and horrible. I had a very controlling parent, and only thing that fixed that was cutting her out of my life.

So begin to find out how to get out of there. As I live in a different country, I can't really give any advice to that, but I guarantee that when there is a will, there is a way.