I'm at my wit's end.

Meaning

I'm extremely frustrated and stressed.

Examples

• John: 'I've tried everything, and nothing is working. <b>I'm at my wit's end</b>.'<br>
• Alice: 'Take a deep breath, John. Let's try a different approach.'
• John: 'You need a break, Alice. Let's step away from this for a while.'
• Alice: 'I've been dealing with this problem for days, and I'm exhausted. <b>I'm at my wit's end</b>.'<br>