When your opponent plays the Sicilian, I advise you respond with the Scotch. After c5, continue with Nf3 and he'll most likely play Nc6, then you play d4 hitting his c5 pawn in the centre, after the exchange on d4, you develop your other knight to c3 and then you have a very solid centre, try not to blunder from thereon out and you'll be fine, getting good at any opening takes time, you'd lose repeatedly but don't be discouraged analyse each game and try to take the correction to memory, good luck.
What to do against Sicilian
If your opponent plays d6, then you can still play d4. Same with if your opponent plays e6. Or you could do what someone did in a OTB game against me, after I played d6, they played Nc3, which confused me, as I had never been presented with this line. I don't know, I haven't studied a lot of openings. You could also try an opening besides the kings pawn opening, but sticking with one opening is fine.
When your opponent plays the Sicilian, I advise you respond with the Scotch.
The Scotch is played against 1. ... e5.
1. e4 c5 2. Nf3 Nc6 (or 2. ... d6, or 2. ... e6) 3. d4 is called the Open Sicilian, not the Scotch.
Yeah my bad, I get confused with the opening names at times, but the OP really won't get much help from the names lol, I tried to give him the general principle against the Sicilian, for his level all he has to do is not blunder.
White's game is certainly easier to play in the Open Sicilian. Black has good chances if he knows where to find them, though.
I always play the King's Pawn opening but when my opponent reacts with Sicilian I don't know what to do. Please help me