Feelings like courage and self-confidence don’t come because we “build them up” or “work at them.” They are innate, and they come to the surface when we start to pay less attention to our personal thinking.
P.S. Have you read The Joy Formula or Mind Yoga? If so, I would sure appreciate a short review on Amazon. It would help other people to find the books, which means you’d be helping those folks who need less stress and more joy in their lives. Many thanks.