Instead of trying to start your own business while being so green, why not work for a company for a few years to help build up your skills and while on your own time, seek out adult education classes. Technical schools is a good place to look for such classes. Plus, no one will hire you by yourself seeing that you're only 21 and previous occupation is/was a dishwasher.........
and ppl are throwing out ideas, you need to read them. you're not going to get rich or have your own business over night. alot of ppl work at it for decades. you are just starting out.