Hello!
Welcome aboard! :)
If you're looking for a game, try the "Wanted - Players" forum. If that doesn't get you what you need, try the "Wanted - GMs" to see if someone will run a game you specify. If you're looking to start your own, try posting in the "Game Proposals, Input and Advice" forum to see if there is interest.
Other than that advice, take your time and look around. :)