The most damaging perfectionistic mind-set, however, is when our worth becomes contingent upon our social performance. Anything less than perfect isn’t good enough, which in the land of dichotomous thinking lands closer to “totally incompetent.” When a perfectionist like Rosie inevitably fails to live up to her unattainable social standards, she takes it personally. “I suck at this; therefore, I suck,” is the conclusion.