Infinite loop

I thought I was fancy and went green-tea tasting
After about 8 cups, I thought I was amazing
I was refreshed and renewed, full of life and all
Until I stayed awake through the night, appalled
The next day at work to save from crashing
I had way too much coffee, good old fashioned
It's 4AM and I'm up, almost shaking
Craving sleep and my head aching
How did I get myself in this soup?
Save me from the infinite loop