You can definitely go to a university if you are willing to make enough sacrifices. You can eventually get scholarship money in places you wouldn't expect if you are willing to make enough sacrifices.
Another thing I would suggest is studying some skill in your spare time. Any skill will work, but some are much better than others (e.g. it will be easier to find people willing to pay you to program than people willing to pay you to play video games). Then, later, after a few years, (this is the important part) figure out how to sell that skill for money.
I currently run a business selling chess lessons to (the parents of) elementary schoolers. I never thought I would make money from playing chess, and I certainly didn't start playing chess with money in mind, but there it is.
You might be surprised to find out what skills you already have if you look inside yourself and what you can sell. I can't give you any specific formula because I was randomly lucky.
However, I can tell you that you don't need to study any one skill exclusively to sell it. My current work is an amalgamation of varying levels of skill at social networking, social skills, dress sense, willpower, physical fitness and attractiveness, punctuality, marketing, teaching, public speaking, awareness of my surroundings, computer skills (yes, really), design (yes, really), and chess ability.
Some ideas* for A+ skills that you can apply to pretty much anything:
Learning (yes, this is a skill. it is at the top of the list on purpose)
Fitness and physical attractiveness
Dress sense and appearance
*I should probably point out here that ideas are worthless, but not useless. They're worthless because they're so easy to come up with. You can make a word document with a thousand ideas in it; anyone can come up with ideas. But to get any value out of any of those ideas, you have to implement them, which is where most people fail.