Let Your Past Inform Your Future—but Don’t Let It Define Your Future The past is valuable. Learn from your mistakes. Learn from the mistakes of others. Then let it go. Easier said than done? As I said before, everything depends on your perspective. When something bad happens to you, it’s an opportunity to learn. When another person makes a mistake, it’s an opportunity to be kind, forgiving, and understanding. The past doesn’t define you. Just make sure that next time, you know what to do differently.