I'm not confident, so I do. I don't think it's true when my colleagues learn, especially when I'm with the leader, but it's much better now. Sometimes you have to be mentioned to you, you know, or you have experienced something, and you can change it when you grow up. If you follow my experience, you are not confident. Of course, it is also very likely that I don't like to wash my hair. Sometimes I like to scratch without washing my hair, because it itches.