The best part about being humble is being aware. When is the last time you looked in the mirror? Did you like what you saw? Most people transverse through life without really getting an opportunity to learn and appreciate their self-worth. You should be grateful that you're comfortable enough to experience self-doubt. I think it would be in your best interest to address a letter to your self explaining why someone would want to spend 10, thirty, and sixty minutes alone with you.
Let's turn problems into opportunities.