Then there are values, which should bring correct values to students. Most students live at home or at school. Of course, universities are not like this. As a teacher, I spend a long time with my students, and their behavior will influence them subtly, so I should always reflect on myself and guide them to think in a good direction.
Finally, my own professional knowledge, but if it is not reliable, it is very difficult to teach students. Needless to say, this.
I think that's all. Of course, if you feel that being a teacher has not found a comfortable way to educate yourself, quit! People are free!