Question

at the end of your tether

Accepted Answer

having no patience, resources or energy left to cope with something

A North American variant of this expression is at the end of your rope and in both cases the image is that of a grazing animal tethered on a rope that allows it a certain range in which to move but which at full stretch prohibits further movement. having no patience, resources or energy left to cope with something

A North American variant of this expression is at the

End Patience Resources Energy Left Cope North American