I mostly struggle with writing style and making the story flow. .-... Its sometimes hard to explain, but when I'm writing, my logic comes out fine, but the actual rhetoric words behind anything that is said tends to fall flat on its face. I'd guess I'd chalk it up to my lack of knowledge on useful words in the English dictionary, but ergh. lol
My stories (or ideas for stories) only tend to feel fluent when there's talking going on it. The dialogue is where it really shines (or at least for Reverse Reverse), because that's the only time that information ends up flowing for me.
In accordance with my inability to type rhetoric words well, I tend to make it seem almost like a commentary by the main character. He'll express his thoughts on the subject/conversation at hand, usually in a simple, yet logical way, and then it'll transition to the next quote. I wouldn't say it's bad, but I have a tough time explaining things in an interesting way that aren't spoken.
I also have trouble starting to type/write, but that's something we all tend experience. XD
To forgive and forget...Such an interesting thing. :P