Reminiscing about the past is something everyone does. We think about moments we wished happened different and wonder, what if? But no matter how much time we spend thinking about what could have been; the past will remain the same. But the past is still useful. Instead of wondering what if, use the experience to do something different the next time. Find the courage to ride that roller coaster, approach someone at a bar, or go play a pick-up game of basketball. You cannot go back in time and make that game-winning shot from high school, but you can make a game-winning shot tomorrow. Learn from the past, but live in the present.