Don't get discouraged I didn't know **** two years into my guitar playing years about the guitar. I wish I could of gone back, and learned more. Oh well the past is gone.
If you're interested in learning music theory a good website is...
http://www.torvund.net/guitar/Theory/index.aspI'm learning from there, and if I can learn music theory from this website anyone can. Its hard to grasp music theory for some, such as myself, you just have to be persistent and apply yourself. I recommend learning music theory, because in the musicians world you are looked down upon if you don't know any of it.
Good luck, and stick with this forum. You'll learn a lot about guitar and life in general. Okay maybe life in general is going a little over board, but guitar is more important than life anyways.