Confidence comes from preparation. Hesitation, anxiety, fear . . . Those feelings don’t come from some deep, dark, irrational place inside you. The anxiety you feel—the lack of confidence you feel—comes from feeling unprepared. Once you realize that you can prepare yourself, that you can develop techniques to do whatever you seek to do well, that whatever you hope to achieve is ultimately a craft that you can learn to do better and better and better, and that any skills you currently lack you can learn, you naturally become more confident as you become more prepared.