Are you having trouble figuring out how to begin the story or are you stuck on a certain part? You might want to skip ahead and try working on a part that would be easier to write. It might give you ideas for what you're struggling with. Oh, and I don't know if I've suggested this before, but you could try plotting out what you're thinking of writing. I do it all the time and it really seems to help. In fact, last night, I plotted out three different scenarios for the next part of my proto novel because I wasn't sure which direction I wanted to go in.