If you make a throwaway app every 2 days, that's 400 apps in a little over 2 years. That's far less time than it takes to go to college and get a bachelor's degree. When you're done, you've got enough income to live off of, and you can work on anything you damned well please.
I don't know that I necessarily agree with Max's premise, but I don't think timing is that big an issue (assuming everything else works out).
You make a project today. 1 buck. Another project tomorrow. 2 bucks. Wait a minute. I can't like off of two bucks.....
You will need another job to provide that needed income to live off of. Especially to pay bills. It will take years