I'm going to agree with "just going for it", but will offer a bit of detailed advice.

1 - Practice loops. Get good at knowing how big the plane can do them without losing too much airspeed at the top, and keep them round. You want to be able to level out at the bottom at the same altitude you entered.
2 - Practice rolls. More difficult to do, but start with full aileron deflection so you roll as fast as possible. Then try slowing the rolls down. Remeber you'll need to add a little down elevator when the plane is inverted.
3 - Practice inverted. This will help those rolls a LOT, and inverted flying is easier than you might think. Your ailerons still work the same way so turns will be easy. You just need to getr use to holding in a little down elevator the whole time, and adding in a little more down during the turns.

Virtually every aerobatic manuever is a combination of these three things, so once you learn them the sky's the limit. (Sorry, bad pun.)

I would also suggest that you practice using rudder. Every turn you make, add a little rudder too. Just remember, when inverted the rudder is opposite.

Good luck, and have fun.

By the way, you don't have to rush. I spent my first year after soloing just flying around. Sure, a few loops and rolls, but nothing fancy. I didn't start trying real aerobatics until I started getting really bored with flying circles.
Dennis-