When I hear strangers around me, I always feel that I am talking about me. What kind of mental illness is it?

This is your fear at work. Maybe you have done something before to make others think that you are not very good, and you have had such an experience, so now you have this kind of psychology. This is a paranoid mentality. I have always felt that others are not good to you and biased against you, which is why I have this idea. In fact, people don't know you at all, you know, but you can't kill these thoughts in your heart, because you will always follow them. This mental illness is actually suspicious. So if you want to change this state, you must calm yourself down and tell yourself that these people have nothing to do with you. And familiar people, when they are whispering, you should also tell yourself that they don't care that they have done an experiment in psychology. People pay 90% attention to themselves, pay attention to their appearance, words and deeds, don't care about others, and don't think about other people's affairs. This is an experiment of China's psychology. You don't have to feel uncomfortable about these things at all.