Self-confidence refers to a person's appreciation of their own self-worth and esteem in a stable manner. It depends on beliefs about one's appearance, behavior, emotions, and abilities. There are many factors that can affect self-confidence, such as genetics, personal experiences, inner thinking, age, health issues, disabilities, work, family support and more. Increasing intelligence through activities like reading, writing, and games can help people evaluate themselves and progress gradually, improving self-confidence. Taking on challenges and building positive relationships also contributes to developing self-confidence.