"Mull im Glück" is a coaching guide designed for teenagers and young adults to start their lives motivated and self-confident. It offers insights from success training and happiness research that provide young people with valuable prompts on how they can take control of their lives and happiness. What happens is not important; what we make of it is! Such thought-provoking ideas are not only shared in the well-attended happiness seminars at Harvard University, but the subject of happiness is also gaining traction in German schools. Positive psychology resonates with today's zeitgeist and serves as a useful compass in the search for meaning, professional success, and romantic happiness. In an entertaining and amusing way, enriched with valuable quotes and metaphors, the author skillfully touches the emotions of young people.