Because if it works, it's not challenging enough. Try doing the opposite, but only after you've already failed at it.
Go to tip 2: The Art of OverthinkingSubtip 1: Procrastination Techniques
Go to subtip 1: The Art of Doing NothingSubtip 2: The Science of Self-Deception
Go to subtip 2: Telling Yourself You're Not Behind