I know it's probably too late for you, given all the great help before me (and the amount of time since you first posted), but maybe another perspective will help anyone else coming to this because they're having trouble, too.
I got mine out in about an hour. It wasn't easy. Writing it was quick, though, because I wrote it like I was trying to describe it to my grandmother. It helped that I had been playing it with my son over the summer, so that helped with expressing some things. Then, I had to rework a couple of things to fit the circumstance, since, to say the least, leading with "Dear Grandma," would have been amusing but awkward.