I'm kicking myself.

Meaning

Similar to 'I could kick myself'

Examples

• John: I completely forgot about the deadline!
• Alice: Oh no! <b>I'm kicking myself</b> for forgetting to remind you.
• John: I should have set a reminder on my phone.
• Alice: Yeah, we all do it sometimes. I would be <b>kicking myself</b> too in your situation.