Take a breather.
Creatives are always on "greenlight" mode and typically mush as much info their brains. Doing something that gives you some peace of mind will help you filter through those incessant thoughts. Go for a jog, stretch in a park, turn on some impromptu jazz, and let your brain have those moments to find a eureka or two.
Good call - I workout every night at an awesome and super creative gym -- Nerdstronggym -- working out keeps my mind off of what I was doing and I feel great after.
Whoa this is pretty awesome!!