Self-assurance is the key to success and bringing a smile even during difficult times. It relates to having confidence in one's abilities, judgment, and power. Self-confident people take risks within their abilities and exert maximum effort to achieve their goals. While self-confidence can vary in different environments and stages of life, individuals can build it by recognizing their inner potential and focusing on situations where they want to feel confident. Confidence grows from the knowledge that one can handle challenges, not from thinking they know everything.