Affiliate Marketing Secrets

I’m 28 years old. I graduated in 2001. Since then, I’ve been through a lot of jobs. None of them really interesting me in pursuing. I’ve been through 2 colleges. U of Phoenix and Devry U. The 1st one didn’t work out because it was in Arizona and online. The 2nd one didn’t work out because of funding. I had a 3.5GPA and because of money, I had to drop out. I made too much the previous year.
So now I’m working full-time at a retail store, and I don’t want to be doing that, it’s just to get some money for bills. I wanted to be in computer science, but you need a degree for everything. And it looks like I have to front my own money from pocket, no co-signer. I know I want to do something with computers. But if it’s because of money, I’m not sure what else to do.
There’s kind of my background a little, any thoughts, thanks in advance. I’m just struggling to find my niche, and need some outside opinions.