Everyone has limits, even donkeys have limits as to how much load they can carry...
Limits are not engraved in stone, they are like elastic bands...but once you stretch them a wee bit too much, they snap.
It's always good to know how far your elastic bands can stretch...and when you need to turn those limits into hard cement walls...
I personally have reached mine. And I shall give them the form and texture they need. Elastic, cement, brick, wood, metal, I decide...and decided I am.