I am an honest man and I am not welcome at school at all. My classmates call me stupid, and everyone hates me. What should I do? I want to change my personality.

It's really hard for an honest man to change what he says. He wants to observe the people and things around him and see if this class gets along well with others. If you can't tell anyone about your private affairs, don't tell them who is bad in front of you. Don't talk to others with a smile. Don't be humorous at ordinary times. Don't show it on your face if you can't say anything. I don't want to say anything if I can.