Defining your life and happiness by measuring professional success is a very likely way to be unhappy. I'd recommend ignoring the book and live your life in whatever way brings meaning to you.
Have read the book, took most of the advice, have gone trilingual, have gone fit and healthy, reached 6 digit salary, gone on most of the places I wanted to visit. Im almost done with 20s. Still feel lost as hell
Being 31, still feeling lost, this title stresses me out