After dealing with the kids all day, I'm at my tether's end.
После того, как я весь день занималась детьми, я на грани возможностей.
Definitions
The phrase '(someone's) tether's end' refers to the point at which a person has run out of patience, endurance, or resources to cope with a difficult situation. It means they can no longer tolerate or deal with something and are about to give up or lose control.
