So you live by yourself in an apartment or on campus then? I also assume you have meal plan at the University? And you have health insurance or just go to the clinic on campus? Basically everything is within walking distance or you have a car? You pay insurance on the car? Gas?
How do you pay for books for school? Scholarship? You have to count all the things that are paid for by scholarship/grant or part of school as income. Else you aren't living on 1000 a month. I also don't live in San Francisco. I"d be hard pressed to find somewhere to pay rent and utilities for 425 unless its one of the 200 a month apartments that you wonder if you are going to get robbed or shot tonight.