​I watched a Major League baseball player being interviewed on television after he had pitched a particularly good game. Early in his career, he had not pitched well and now he was pitching very well. When the interviewer asked him what it was that caused the change in his performance, he said, “I stopped dwelling on my mistakes.” He explained that early in his career, he thought about his mistakes a great deal. This caused him to worry about making future mistakes which made him less aggressive as a pitcher. As a result, his performance suffered. He went on to say, “Mistakes are what they are; you can’t go back and change them. So, learn from them and then forget about them and move on.”