It does suck that even if your on your own you have to supply your parents information until you are 24 years of age. I waited until I am 24 and started college. I didn't have to pay out of pocket at the time. You can fill out the FAFSA at the financial aid department at the college and get a student loan. I did this for my freshman year and then because my grades were so good I qualified for scholarships that covered the majority of my tuition. Also you can apply for grants there are all different types that you could possible qualify for. Just some food for thought if you decide to go to college.
Good luck to you. Also regarding the food situation you could reach out to the local churches in your area some give out food on particular days of the month and may make exceptions in emergency situations. Also contact your local department of children and family services and get a list of local food pantries in your area. ALso some Salvation Army's give out food and are a good source of other local resources. I hope some of this information helps. God Bless.