Don't try to be grown-up. A child, always a child, even when you are dying of old age. When a child stumbles and falls, nobody is surprised; his father promptly lifts him up.
When the person who stumbles and falls is older, the immediate reaction is one of laughter. Sometimes this first impulse passes and the laughter gives way to pity. But older people have to get up by themselves.
Your sad experience of each day is full of stumbles and falls. What would become of you if you were not continually more of a child?
Don't want to be grown-up. Be a child; and when you stumble, may you be lifted by the hand of your Father-God.