Well, that was an easy win. The order of development of your opponent was odd.. after f5 he could simply play Nc3 or maybe take with his pawn. I don't play this opening anymore but it helped me alot against ≈1200 players especially when you analyse your games, you will find that a lot of players tend to play the same way against it so you'll know what to do. it is also a very solid opening when you play KOTH. here is an example from my games :
https://www.chess.com/daily/game/252257330
i played f5 on move 5 and won the game in 8 moves
https://www.chess.com/live/game/4911704276