I saw this Ze Frank episode that reminded me of this thread. "Brain Crack" kinda sounds like what I'm experiencing. Never executing my ideas, at least never to finish, just building it up in my head.
the show with zefrank
For you who don't know what "Ze Frank" is (I didn't until recently) here is a background article that
summarizes it. Look up "Earth Sandwich" as well, while you're at it.