i want to move out

im 17 and my mom and step dad are emotionally abusive and manipulative. i came out as trans and they havent been trying very hard to support me. my step dad told me that since i still have pms and “feminine problems” im not trans and im not a “friend” of the LGBT+ community. i really want to leave and move in with my boyfriend of 2 years. and i know like we could break up but i actually have someone else that i could live with. she also moved out of her home. the only problem is uh that if i just run away, they could get police involved, but i thought maybe i could convince them to let me move out. idk how im ever going to do that. but i mean its worth a shot.

i feel so trapped here and like someone is always watching me constantly. i dont have much freedom. i just need help with figuring out how to convince them to let me move out

i turn 18 in september