Authentic means how fearless and confident you are? Never fear anyone, be vulnerable and have an ability of an honest yourself. Do what makes you happy? For example, workouts, reading-books, study for growth. Be prioritize yourself first sometimes selfish nature is significant to prove yourself first not lasts. Confidence is a key of success and another tasks. Be honest and go ahead. Honesty is the best policy. Just do whatever you want. Priority makes you responsible and loyal person.