Some pits are infinitely deep. Problems that, once addressed, always get worse. N +1. For some folks, the acquisition of money or power are like this. A little leads to a desire for more.
Other problems have known solutions. The tank only holds 8 gallons and then you can move on to filling the next one. A third ice cream cone isn’t as good as the first one. Effort leads to satisfaction.
It pays to decide which sort of hole we’re trying to fill.