I'm on my own now at 18, help me figure out?

Well if you did not want to end up on the streets, then maybe you should have thought about it before you smoked. Idiotic move. If you have no income, then how did you get that weed? It is your own fault for making a move like that. Wasting money on something like that. You need to really think about your life, not finishing school will set you back a lot! The earlier you can finish school, the faster you can get experience. Your Mother was very smart about her decision, now you need to make the commitment to quit, and finish school. Get a job, and to keep your family, they will always be your best friends.