The mistake should be punished, but it doesn't have to be realized by being angry. Since the mistake is in him, why should you be angry? Don't you punish yourself for other people's mistakes when you get angry when they make mistakes?
So, we should
learn to laugh at ourselves humorously: if you can take a step back and treat life like a play, you will find that many situations in life are absurd. Try to laugh at life. Humor can often relieve stress. If there is a mirror in front of you when you are angry, you can definitely see the guy in the mirror with warm nostrils, which is really funny.
lengthen the distance between time and space: ask yourself whether the things that make you angry are still important next week, next year or a hundred years later. This can help you examine the situation and decide whether anger is the most appropriate response.
intrapersonal communication: When you are angry, communicate with your feelings and ask yourself what happened. What do you want? Afraid of what? You may have to remind yourself that just because you thought in the past doesn't mean you still have to think like this now.