Help me get out of my abusive family

im a 17 years old who just gratuated from high school yes its weird but i got in school on a early age i didnt wanted to get into medical school and had other plans for my future that ofc didnt want to support me in decided to shut me on the house and give all the househould work im the older and i got two brothers and a sister i dont have any family member to help me on this matter this has been going on for months and i just cant take it anymore