The Importance of Self-Discipline

I don't know if it's specific or unique to me, but something that I enjoy is the challenge of self-discipline. It's like, I want to see, it's why I start doing Iron Man triathlons. It's why I do CrossFit. I like the idea of challenge myself and seeing what's possible. For those people, I think New Year's resolutions would work well,. And goals probably work fairly well for those people. But again, I don't think that's the majority of people.