You may be afraid to teach because you believe others are more qualified. There are people who know more than you. That may be true, but those people aren’t your audience.
Instead of focusing on the masters in your field, think about the person who is one step behind you. What would have saved you time and pain? What do you wish you knew when you were in their shoes?
You don’t need to know everything. Teach what you know as you go, and teach from experience. Don’t teach what you don’t know, simply share what you do know!
Teaching is one of the best ways to learn. In order to teach, you have to understand what you do and why you do it. If you can’t explain something simply, you don’t understand it. This is why teaching forces you to learn even more.