Hey, I'm New, But Trying To Catch Up! Help?

Hello! If you don't know me, I'm SwirlSpark, and I just joined recently. I'm currently working on two stories, which will have multiple chapters, of course. I'd need some extra help wording my sentences with my comments, though. One of the stories is currently called "Perfect in the End," and I'm writing it with my best friend, who's also a Brony. The other story I haven't started yet, but I'm plotting it, and It's gonna be about Derpy--who, in fact, is my favorite character on the show. I hope you like my stories, I wish you all good luck!!