should i go home? what should I do?

my mom is verbally abusive. she makes me hate life. I'm currently at my aunt's house & she's threatening that if I don't return she's going to come pull me by the hair and beat me in front of everyone. I can't argue w her cause it's "being disrespectful" according to her. I left because she kept taking off guard pictures of me to a guy I don't talk to & cause she wants to keep the money my dad is sending me (to help buy a car) for herself. I'm 17. what should I do? I try talking to her but things are the way she says they are & she keeps calling me a dumbass & insulting me. I literally told my cousin if I kill myself, it'll be because of her.