Badass Habits is a sharp, accessible, and funny exploration of how habits shape who we are—from private daily behaviors to loudly declared (and often abandoned) goals on social media. Jen argues that habits go far beyond punctuality or discipline: they reveal our unmet desires, weak boundaries, self-awareness, and hidden fears. With her trademark humor, she challenges conventional habit science, blending fresh insights with interviews of people who’ve successfully rebuilt discipline and mindset. The book offers a new way to train the brain, plus a practical 21-day, step-by-step plan to break unhelpful habits and build meaningful ones. Jen shows that with clear boundaries, permission to pursue our desires, and a simple action plan, changing habits can be not just possible—but joyful.