My only love sprung from my only hate.
To be more childlike, you don't have to give up being an adult. The fully integrated person is capable of being both an adult and a child simultaneously. Recapture the childlike feelings of wide-eyed excitement, spontaneous appreciation, cutting loose, and being full of awe and wonder at this magnificent universe.
People talk about physical fitness, but mental health is equally important. I see people suffering, and their families feel a sense of shame about it, which doesn't help. One needs support and understanding. I am now working on an initiative to create awareness about anxiety and depression and help people.