How should I counter the Sicilian?


I would just recommend the Closed Sicilian at your level. I wouldn't play a wing gambit.... that requires sharp play from you. And you don't want to over-emphasize throwing off the opponent when your opponents don't know anything anyway. Closed Sicililan is just fundamentally good, and it limits the amount of theory you'll need to think about while still remaining principled.
For now just play the Grand Prix attack, i.e. push f4 like this and then build up to storming the kingside. Very simple, hard to go too wrong -