Hey for your level that was a really good job. I've played some 1000 rateds so I have a frame of reference a few pointers though (I don't play d4 or the English, but just some "general tips")
3. e4? Is this a Book line in the English opening? It seems odd as it weakens your d4 square really early... but I don't know. playing 1. c4 is a very positional opening, but you attack! Try opening with 1.e4 instead and learning a few openings and stick with them for a while.
5. f3?? I think blocking the bishop with Nf3 would have been good. I know it pins a piece but it's developing pieces... and if he wants to give away his good bishop for your knight, that's fine.. he gave away one of his developed pieces to develop your queen(once you take it back.
6. g4 is suicide. It worked out in this game, but be very very weary about playing g4 because it opens up a vulnerable diagonal to your king when he is uncastled.
13. Ke2 was really good! I'm impressed that you knew not to give away your good knight for his terrible bishop... he wanted to trade!
Here's a great game that I think I did rather well in. My opponent played very well too. He stayed in it longer than I expected.
I played as white. I won.