Self-concept refers to a person's overall mental image or perception of themselves, while self-esteem is the value that one places on oneself based on that self-concept. The document discusses developing a positive self-concept and high self-esteem through recognizing personal accomplishments, setting attainable goals, focusing on strengths, and surrounding oneself with positive relationships that provide support rather than tearing one down. Maintaining a positive self-view involves being aware of influences, respecting oneself, taking responsibility for one's choices and goals, and upholding principles and values.