Move out. And yes it is that easy. I worked 1.5 jobs all through college. You gotta do what you gotta do.
Really? You think everyone at your school is living with their parents? I went to college out of state and made it work- I worked 7 days a week, 2 different jobs for quiet a while but I made it work and had extra $$ actually. Yeah it's not easy, but you can find jobs for after your classes, you can work on the weekends - it's not going to be as comfortable as how you're living now but you can get away from all the craziness at least.
My son moved out during his second year of university, because he wanted to try life on his own. He reduced his school workload by one class, and worked 35 - 40 hours per week. He is doing very well and truly enjoys his freedom. It is not easy, but it can be done.
I'll add to this. I have a friend who was a single mother, lived alone with her child and put herself through Law School.