His Matures How Can I Help My Brother Boost His Confidence And Act A Little More Mature?

How can i help my brother boost his confidence and act a little more mature? - his matures

Hello. My little brother was born with the flip of ____. I do not remember the expression is delayed as a baby. Hes 7 years now. His language is not as clear as other children, but better. What are some things about my family and I could do to make her trust, and with it a little more mature? still acts as if HES in kindergarten or first grade.thanks!