Cow, work under a tight time constraint. Give your self 10 minutes to do something that takes you 3 hours. Then post it here for critique, whether it's done or not. You won't have time to think about masturbation.
On a similar note (maybe?), I've lately been obsessed with determination versus futility. Nothing is more inspiring to me than when somebody attempts something ludicrously impossible, even if they utterly fail--especially if they utterly fail.