Need inspiration? Use one of these suggestions:
I can't function without coffee. 
This coffee is too strong for me. 
I need my coffee fix. 
I'm not a morning person. 
Catch me if you can, I'm overflowing with coffee! 
Be careful what you wish for 
When your coffee cup runsneth over 
Don't worry, be caffeinated 
When your coffee addiction is out of control 
Living on the edge... of an overflowing cup of coffee 
Whoops, that's a lot of coffee! 
Coffee-ception - when your coffee cup is too full 
Too much of a good thing 
When you just can't control yourself around coffee 
I'm not sure this cup can handle anymore! 
When you take a sip and realize you've gone too far 
Caffeine overload! 
That's one way to get your caffeine fix 
When you realize you've overdone it with the coffee 
When one cup of coffee isn't enough 
Oops, I think I put too much coffee in this cup 
When your coffee cup overflows 
Whoops, I guess I should have used a bigger cup 
Don't mind me, just living my best life 
When your coffee cup is too full for its own good 
When you need a caffeine fix 
I think I'm in a bit over my head 
When your coffee addiction is showing 
I think I might have gone overboard