" For work success to lead to confidence, the job has to be challenging and it must require effort. It has to be done without too much help. And it cannot go well every single day. A long run of easy successes creates a sort of fragile confidence, the kind that is shattered when the first failure comes along. A more resilient confidence comes from succeeding—and from surviving some failures. "

― Meg Jay , The Defining Decade: Why Your Twenties Matter—And How to Make the Most of Them Now