I think what you say in your two posts conveys the problem very well. We all have to realize that everyone has their limits and capacities and will cope well one day and perhaps not another.
One of the big reasons for this will always be the way the "outside world" affects us from one day to the next. It's good you remind us of that.
Nobody living can ever stop me
As I go walking my freedom highway.
Nobody living can make me turn back:
This land was made for you and me. (Woody Guthrie)