Try not to think about it too much. Usually when you focus on the problem too much, you’ll get to your comp/notebook to write and be just as stumped as before. Ease up a little, and the answer shall come. You’ll be able to solve the problem. That is, unless you spend so much time NOT worrying about it that you forget where you’re going with the story and leave yourself with just more confusion and/or frustration…I’m just kidding. That won’t happen…I hope. DON’T LET THAT HAPPEN!
Anyway, I wish I could just zap the answer right to you. If I could do that, that would be cool. Otherwise, good luck and don’t strain yourself!