What do you do when you are the oldest child (18) out of 9 kids and your mom treats you like you the youngest?

i dont get to go anywhere. i never hang out with my friends. i never failed a grade or cl. i make A's and B's. i graduate may 20, 2011 as an honor graduate...im 18 and get treated so badly. i cant drive and thats so embaring because everyone i kno can even little freshman smh. all these younger kids i kno can go where ever orr do what ever they want but im always in the house babysitting my brothers and sisters and last time i checked i didnt have any kids. i dont get paid for anything. i hate my life, i often want to commit suicide but i dont have the to do it. what do i do??