I am a very stingy boy. When people say something about me unintentionally, I get angry ... what should I do?

Personality problems, you can learn this smooth point, there is no need to suppress your own personality. So it's not you.

No one likes others to talk about themselves behind their backs, especially to speak ill of them. And people are selfish, although not angry, but always don't like it.

I'll teach you a method.

Be tactful, such a trivial matter will not attract your attention and revenge. Show your generosity.

Meaningless comments will change with your actions.

For example, have you ever done these things?

Everyone has jealousy, only size. For example, your grades are ideal, or your career. Anyway, some people will be jealous.

These people don't have to pay attention. Because such a person should not be in your eyes. Besides, these people are not qualified to compete with you.

Having said that, why should I hate and be angry with these unworthy people?

Have the strength and energy to be angry with such a person? You might as well choose to despise these things.

At least you know who these people are. Why should you make yourself unhappy?