In both the young and old is the desire to ‘be’. The old can feel stuck in the mud and feel that life is going to pass them by. They can get anxious about that. The young can feel the old is holding them back and want to go around them. They can get anxious about that.
It is in this context that Peter makes this statement: to both he says, “Humble yourselves, therefore, under God’s mighty hand, that he may lift you up in due time. Cast all your anxiety on him because he cares for you”.
It is God that lifts us; we cannot lift ourselves.
Hunger and Thirst 