Emancipation.

I’m 17 years old and I’ve been staying with my friend for a little about 2 weeks I’ve been the happiest I’ve ever been. When I stay at my parents I cry everyday and all they do is bitch at me and make me feel at my lowest and make me feel I have no purpose in life or that I can’t make my dreams come true. My parents are divorced but I don’t stay with my dad since he’s not in the best mental state or money stable wise. So i stay with my mom and her bf, She’s always picked her bfs over me and always puts me last and I just feel like nothing here and that he’s the only thing she ever will care about. When i come home all she does is yell and put me down and it just hurts to be here. Any advice on emancipation? Or what I should do. I tried talking to her about her bf and all but it doesn’t help or anything. I have a job and I pay for my own things etc