If you're too comfortable, you may need to ask yourself what you're *not* doing.

"In the end it all comes down to this: you have a choice (or more accurately a rolling tangle of choices) between giving your work your best shot and risking that it will not make you happy, or not giving it your best shot--and thereby guaranteeing that it will not make you happy. It becomes a choice between certainty and uncertainty. And curiously, uncertainty is the comforting choice."

--David Bayles and Ted Orland, Art & Fear: Observations On The Perils (and Rewards) of Artmaking