Regret
No matter how old we are, we’ve made bad decisions and mistakes that haunt us. It’s not the decisions where we worked too much or didn’t take a chance that bother us. It’s the time we hurt someone through our actions or inaction. The past is the past, and, honestly, the only thing you can do is accept what happened, apologize, and move on. Life is about learning from our mistakes and making amends for past decisions.