money and college

i recently went back to school and am interested in human physiology and thought maybe ill get into medicine school, now i was never poor or welloff say upper lower class or lower middle class.
But ive got banks throwing money at me now i dont know what to spend it on ive got my rent paid for like the full length of the tenacy in advance and everything i could want for my new flat and im currently on a driving ban so no buying a car how can students ever be short on money or do other students get different ammounts for doing different courses