The thing I was working on, it took a U turn. And I already did a rewrite. What I've noticed is the following statements are so very true.
Write drunk, edit sober.
Write what you know.
Write drunk, edit sober. Obviously you don't have to be fall down drunk when writing. What you need to do is switch your analytical side of your brain off for awhile, give it a rest. Just be creative. Edit later, and figure out how these things are going to work. I'm taking my own advice on that. Last night I stayed up late writing, and writing. When I finally did go to bed, that's when the editing started happening. I didn't sleep well.
Write what you know. This is fucking obvious isn't it. Let's say your a huge fan of comic books and superheros. You don't have a real clue about Ancient Japan, other than a cursory knowledge. Trying to write a epic RPG based around Ancient Japan isn't going to be easy. Unless of course you do research. If you want to write the Ancient Japan thing, get a few ideas peculating and then do research!