A lack of confidence Yesterday at the office, a young intern who had finished her training period, talked to me that she had a lack of confidence. So I explained to reassure her that it isn't always a negative thing. Indeed, I think that a person who lack of confidence, by fear of being judged, will be more intent on doing his work correctly, and will try to do his best. On the contrary, a person too confident could overestimate his skills and rush his job. Lack or excess of confidence could be disastrous, we should find a balance.