Not all mental problems are accompanied by a clinical diagnosis and turn life upside down, but this does not mean that they do not affect the general well-being of a person. This book will teach you how to cultivate a sense of calm and confidence using cognitive behavioral therapy techniques that have been demonstrating effectiveness for over 50 years. Each chapter of the book addresses one of the common problems: - low self-esteem; - unstable relationships; - stress, anxiety and anger; - feelings of guilt and shame; - constant obsessive desires. These chapters also present various exercises and techniques to combat them. The purpose of this book is to provide the reader with real tools that can help solve various problems and challenges that arise from day to day on our life path.