How do I deal with being poor at college?

There are some great tips & suggestions here, OP, but I hope that you are getting the general drift: college isn’t high school, lots of students are on very tight budges, and there are many ways to live frugally at college. Save as much as you can between now & then, be smart with when & where you buy stuff and whatever you do, do NOT get a credit card when you get to college. Stick to a debit card until you are really good at budgeting.