By age 40, you need to understand these...
1. Everything won't go according to plan, always be ready to change directions.
2. Focus on what matters, everything else falls to place.
3. You only have one version of your body. Focus on your health.
4. When you do anything, don't expect two results, success or failure. Expect wins only because your subconscious follows your thoughts.
5. Don't seek validation, seek to become the best version of yourself. People will love you that way.
6. Nobody believes your excuses, no matter how good you give them.
7. You'll experience setbacks when building your dream, but eventually you'll win.