at (one's) wit's end

In a state of distress that is reached when someone has no more patience. The baby's been crying for hours, and I'm at my wit's end! I'm already at my wit's end, so if this train gets delayed too, I'm going to scream.

Common Names:

Name	Pronounced	Usage
Alois	AH-lo-ees (German)	German, Czech
Jerzy	YE-zhi	Polish
Paisley	-	English (Modern)
Aiday	-	Kazakh
Stephanos	-	Ancient Greek, Biblical Greek, Greek
Samina	-	Arabic