There is great mythology about parenting, and teaching for that matter.
Unfortunately, once you put people in a role of responsibility, they assume that they must act infallibly. That is always a mistake. The secret of building successful relationships as a parent or a teacher is to establish genuine relationships.
As my friend Kev Hewitson says: If you can’t reach them, you can’t teach them.
Your children or pupils need to see you happy, unsure, hesitant, worried and silly if they are to be able to learn effectively from your example. Never feel the need to always be right… it is not authentic and you will be found out.