I don’t even know anymore

I feel like I am about to quit. I want it to be over. My mom has a superiority complex. She likes keeping me in check knowing (thinking) that i will roll over and be her little b****. Today he did’nt like how I did the dishes and wanted me to do it all over again. All because I didn’t do it the exact way she wanted me to! So I ended up getting to an argument explaining to her that she makes me feel like s*** and that she bullies me and she is allowed to make rules and then change them in the middle just so she can win. My dad in law didn’t like how i was raising my voice in return to her yelling at me. So he got up in my face and started yelling if I had even breathed a word i’m afraid he would have hit me. My dad in law backed away, I started crying, he told me to get a paper bag as joke but i was really having a panic attack. I just broke into tears on the floor. My previouse dad had made me fear every father figure i have ever had but now my dad in law has made it worse. My only protectors are my older brothers. My oldest brother said I can go to his house anytime I need to and then my second eldest said that he would never lat my real dad hurt me. Can’t be any different. The only thing not making me end it all is my girlfriend. She is my life and if I end it then so would she. I need help. What do I do?