KEY POINTS
  • CNBC's Jim Cramer told investors not to get hung up over their mistakes and just move on when one of their stocks takes a turn for the worst.
  • "The stock market can be punishing enough — you don't need to make things harder by punishing yourself," he said. "Don't play the 'if only' game."

CNBC's Jim Cramer spent a lot of time at his hedge fund kicking himself when he made a mistake or a wrong stock call. But he's since learned that such a punitive attitude doesn't get investors very far.

"The stock market can be punishing enough — you don't need to make things harder by punishing yourself," he said. "Don't play the 'if only' game."