I wouldn’t worry about clothes. You don’t need to dress up for college. Don’t try to be something you are not. Just be yourself. In college you will meet people from all different types of backgrounds. Some may be wealthier and some will be in a worse situation than you. No need to feel self conscious about your situation at all.
D’s college has a food pantry for lower income students where they keep supplies specifically for those students. (snacks, canned food, toiletries) Look for a job on campus. If your tuition, room and board is paid for you don’t need to bring a lot with you, just a few things for your dorm so that your room is comfortable for you.