Tomas Chamorro-Premuzic

it would not bring us any genuine success

not easy to make your confidence soar, just like that

The illusion that high confidence can help us achieve anything we want puts an incredible amount of pressure on us to feel assertive, and to translate that assertiveness into success.

As a consequence, those who lack confidence feel guilty and ashamed, and those who feel confident have unrealistic expectations about what their confidence will help them accomplish.