I'm Done - I'm Done is when you're so fed up you're just like, 'I'm out

I'm Done is when you're so fed up you're just like, 'I'm out. No more. Not even a little bit.'

I'm Done with this class. I'm out. No more.

I'm Done. I'm going to sleep and forget this day.

I'm Done. I'm just going to vanish and never come back.