Do you want to learn how to play chess or just beat this guy at anything no matter what? Forget about him and start reading some beginner articles here- click on "Learn" at the top of the page then on "articles" and type in "beginner" in the articles search bar. You'll find a lot to read there!
And if you can pick up one or two books such as
"Common Sense In Chess" by Dr Lasker
"Logical Chess Move by Move" by Irving Chernev
See what your local library has in the way of chess books (if any). Join a local chess club (if there is one).
BTW why is this creep your friend anyway?
This is not just a game to me right now. I have an arrogant friend at school. Always rips on me for everything. Picks on my shortness and weak strength. Acts like he is smarter, and I felt like beating him at his own game, chess. Right now, at my rate, this will never happen. Never played chess before now, and only have been studying a bit. Don't know any tactics, strategy, and only a few chess terminology words. My rating has been stuck at this embarassing number and I feel lucky to get to 600 and above, or just get a win in general. I just need to beat this guy at chess though. Any suggestions.