Forbes: So how can we become more self-confident investors, job-seekers, and team members? The answer lies in the recognition that confidence is something we do, not something we have. Confident people look at situations they face and scan for similarities to similar situations that they have mastered.

http://www.forbes.com/sites/brettsteenbarger/2016/04/24/acting-on-conviction-how-we-can-become-more-confident/2/#38a2ef648926