Other than the excellent advice from Jesse R. above, I would check the looking for group tool and this forum at least once a day for games that fit your schedule and interest you. When you see one you like, apply as soon as you can. I'd also add that I think there's a kind of matching mechanism that goes on between prospective players and the GM. Look for games where it sounds like the GM is looking for players similar to you in tastes and preferences. Be sure in the application to be honest about what you like to see in a game, what you like in a GM, and what you like to see in your fellow players. Also, try to make your application as readable and as possible (no long walls of text, spelling errors, etc.).