Learning to effectively lead yourself and others all comes down to discipline. Happiness, success, and fulfillment stem from focus and self-control. It may be hard to believe when you’re facing an all-you-can-eat buffet, the prospect of making a quick buck, or the lazy lure of sleeping in versus getting on the Peloton, but studies show that people with self-discipline are happier. Why? Because with discipline and self-control we actually accomplish more of the goals we truly care about. Self-discipline is the bridge between goals defined and goals accomplished.