Compare the costs of dorms, off-campus housing, and apartment sharing. Don't forget the cost of utilities and food. You can get rent averages, information on standard utilities costs, etc. on the Internet. You can get a good average on this by writing out your current budget and modifying it to include the items that your parents are paying for now. Determine your other sources of funding.
Financial aid is always a tricky situation and the options can seem overwhelming.
Another option is part-time work, both now and once you are enrolled in your college courses. If you have a job now, there are ways to squeeze savings out of that tiny-looking paycheck. If you are waiting until you enroll to accept employment, plan your workload and class schedule accordingly. Take classes only on Monday, Wednesday and Friday, or all week through but only in the morning. Don't forget to add at least 10 hours a week for homework and additional time for classes with labs.