Regret is a powerful force. Living your life in a way that you can be proud of the legacy you leave behind will help make the day to day choices clearer and more easily tackled.
More than anything, we want us all to get to the end of the line and be able to say we did our best, and didn't hold back on doing what was right.
Turning your attention to those around you can help shift your perspective, and help sharpen your actions towards a more positive outcome.
It's amazing how many people don't actually enjoy the life they're living. Working towards goals they believe in can help. Also, do we need to mention regret again?