I work at a grocery store and they asked me to go full time and make 10.50 an hour, but i don't know?

Don't give up your job. Look around, people are losing jobs right and left. Going to school at night or online would be great. With some education, you could even go into management for that grocery store chain. Some of the general managers for those stores make big bucks. Talk to yours. Ask him how much education he has. He doesn't stand all day anymore, but I bet he used to.

If you don't want to ask people "paper or plastic" for the rest of your life, stick to part-time and go to school.

Go to school, of course.

take the job these are strange economic times and jobs are getting scarce save the $ you will make to help with college in the Fall

I would not think it would be a bad idea to postpone or take college slower while establishing yourself and maybe saving up to buy dependable car without payments, or furniture, or something else that would be hard to do as a full time undergraduate devoting your time and energy to your classes. These are tough economic times, and things like that are going cheap plus you will get something additional to put on your resume and show employees you are a committed worker. That said the danger in that is being young you may make decisions or financial obligations that will make you too dependent on your job while your pay gets chipped away by inflation. Babies, commitment to a lifestyle, lovers that discourage moving, long term payment commitments like a car payment could keep you from going leaving your job and going to college later stuck working groceries for a long time.

You have a better alternative for a job now? You have enough money for college? Your parents have saved up college funds for you? You're lucky in this economy and with your lack of education to find something full-time. And better than minimum wage, too. Take it, work your butt off, save every cent you possibly can. Then go back to school.