Self-esteem is the opinion we have of ourselves. When we have healthy self-esteem, we tend to feel positive about ourselves and about life in general. It makes us better able to deal with life's ups and downs. When our self-esteem is low, we tend to see ourselves and our life in a more negative and critical perspective. We also feel less able to take on the challenges life throws at us. If you have low self-esteem or confidence, you...