I haven't visited the forums in awhile, but I had picked up good info there, especially in some of the pinned topics.
First of all, one thing I always do is Train. To do this, you need to identify one or two young players with good potential that you want to develop - and if you train multiple players, it is better if they are at the same positions - this way they will bump more quickly. If you don't have one on your team, go out and buy one.
Scout your opponents - you can sometime sneak a win if you see a trend in which offenses they are running, especially if they underestimate you. On a related note, don't get stuck in one offense (though anyone who has been scouting me the past couple of seasons probably can tell which offense I've been using 85% of the time). Especially until you find one that really works for your squad.
Explore the Game Manual, and any of the other links on the side here - I think familiarity really helps with feeling comfortable with what you're doing here, or in any game.
I was a Supporter for a few years, and sometimes I really miss that - there are some fun things you can do there. So, it depends on how much time you want to spend here if you want to go that route.
Well, that's just off the top of my head. Just try new things. Ask questions here, I won't mind giving my 2 cents worth!
Good luck. and most importantly - Have fun!
-oo-