What do you think of yourself? How do you evaluate your own worth? If you struggle with feelings of low self-esteem, you’re not alone. Even the most confident and outwardly successful among us experience what can sometimes be crushing self-doubt. Self-esteem isn’t static. Some studies have found that our feelings of self-worth change as we age—young adults and people in mid-life appear to have more self-esteem than people over 65. In fact, a 2010 study of Americans aged 25 to 104 published in The Journal of Personality and Social Psychology showed that self-esteem later in life declined, due mostly to downturns in finances and physical ability. Experts say there are things you can do to improve your feelings about yourself and boost your self-esteem. Having better self-esteem, in turn, helps you cope with life’s inevitable challenges. When you feel more confident and more grounded, life becomes more enjoyable and interesting. …