It sounds like your parents have no boundaries and violate yours. These were issues I dealt with regarding my mother in my early 20s. It just isn't really their right to tell you what to do with your life, just as it isn't your right to tell them what to do with theirs. Very gently, you ended up in an abusive relationship because you are so used to your family violating your boundaries that it doesn't feel uncomfortable for you. Hopefully, therapy will help and you will be able to clearly define yourself to your parents.
People that violate others boundaries absolutely flip out when they start standing up for themselves. So, your parents will probably ask you to move out once you stand up to them. Not to worry, this is all part of the process. Continue to hold your ground and move out. Eventually, with continued boundaries they will eventually learn to respect you. My mother certainly has great respect for me now.