How Can We Build Confidence?

You need a certain amount of confidence to do anything that involves some risk, like speaking in public, starting a business, righting a wrong, or standing up for yourself or for others. Why will your book, or blog, or podcast, or request for a raise, succeed? You need to have confidence that what you are doing is worthwhile.

Often, perhaps too often, lacking confidence in our ideas or our talents prevents us from taking risks, and while that might keep us from failing it also keeps us from stretching and doing something worthwhile.

How can we get past this? How can we build confidence?

Related questions: How do you define success? When is it useful to fail? Why do we care what strangers think of us? Why do we put up with unhappiness?