Merlin Mann, Back to Work Episode 78
Sometimes we can think ourselves into doing pretty much nothing.
Because we think there are so many things to do, that we can't do one thing. There are so many things we're doing badly, that we can't do one thing well. There are so many things we've failed at in the past, there's no chance in the world we're ever going to do anything cool again.
So what do you do? You MOVE. Almost any kind of movement is better than doing nothing.