Believing in yourself is not a passive trait but an active, cultivated mindset that serves as the bedrock for all personal and professional achievement. A central work exploring this transformation is Believe in Yourself
You do not rise to the level of your goals; you fall to the level of your systems. how to believe in yourself book
Distinguishes between a "fixed" mindset (talents are innate) and a "growth" mindset (talents are developed). Believing in yourself is not a passive trait