Words That Shine: Affirmations to Believe In Yourself. Self Esteem and Self Love Affirmations, for Children Ages 5-10. "Positive Phrases for Children That Help Them Believe In Themselves" These are small but powerful phrases that can make a difference in any child's life. How many of us would have liked to hear a small word of a phrase to bust our self-love and self-esteem when we were growing up