You can tell me not to let people control me but I dont' know how to do that. That does not even exist in my brain.
Most of my life I have felt like this. Bullied, used, put upon.
No more. I have worked very hard on raising my self esteem, I have over years 'brainwashed' myself into loving myself. You must love yourself.
The best thing you could do is get away from your parents, is that possible?