Last resort don't know what to do?

my relationship with my mom is nothing i hate her she is always drunk and never believes anything i say. she has no reason not to either! lately she was drunk and i was at my dads house with my little brothers and boyfriend. that was where i was supposed to be but she didnt know my bf was there. we ended up staying at my dads untill midnight when my bf took me home since my dad and stepmom asked. when i got home she looks out the window and saw his truck and thought i was at his house or somewhere i wasnt supposed to be. and we ended up getting into a big fight she was callin me every name in the book and worse im sick of it i hate her she always downs me and im only 16 but i want out of this house and idk what to do only thing ive heard of is emancipation (Arkansas) shes the worst thing in my life and i feel helpless to change it plz help!