moving out

im a junior in high school and plan on moving out when I graduate, although I am still going to be 17 when that happens. I work at least 25-30 hours a week and am trying to get another job. I do pretty good in school but my home is hell.. I live with my mom who doesnt like to live in one place for a very long time. completely strict.. too controlling, cant do absolutely anything. im treated like a piece of shyt, like im stupid, and like im 5 years old.. im sick of it.. I have thought about moving out now but didnt want to leave my little brother alone, and I at least want to get high school out of the way.. I am going to go to college and become a vet like I have always wanted to become.. I normally dont ask for advice or help on anything so im sorry if this message is so long lol but this is something I wanted to think out before I do it.. so if anyone can help me out if your going thru the same situation or at least help me out.