Perfectionism is a Lie That Ruins Your Health “Perfectionism is not the same thing as striving to be your best. Perfectionism is the belief that if we live perfect, look perfect, and act perfect, we can minimize or avoid the pain of blame, judgement, and shame. It’s a shield. It’s a twenty-ton shield that we lug around thinking it will protect us when, in fact, it’s the thing that’s really preventing us from flight.