You know the story. Every year, you make grand, sweeping resolutions. You vow to quit eating sugar, go to the gym four days a week, and to be a nicer person. Your heart is in the right place, and you start your year full of optimism. Then comes February, and try as you might, you're back to your daily 4pm sugar fix, you haven’t been to the gym in a week, and you’re snapping at your co-workers. The cycle is demoralizing, and it leaves you feeling like a failure.