Self-esteem is the care and value you give yourself. During puberty, with so many changes in the mirror and in your mood, it's normal for self-esteem to wobble a bit. But remember: you are much more than your appearance! Focus on what your body is capable of doing, on your qualities, and on what makes you unique. Be your own best friend, speak kind words to yourself, and celebrate every small step of your evolution. You are wonderful exactly as you are!