I havent got the money to fufill my dream, what to do.. :(?

Okay so i come from a working class background, and i really want to be a lawyer therefore i have to study alevels and go to uni, i know i can get a student loan for university but for the next two years and when i go to uni i'm going to have nothing, my mum and dad refuse to pay for me because they think i should get a job, ive been looking for part time jobs and theres none about and also i dont want a job to distrupt my learning, this have been my dream my whole life and i got brilliant grades in GCSE, i just dont know what to do i cant survive without money, i wont be able to get to college and EMA (education maintainence allowence) is being stopped! ahhh!