Do you ever have those work days where

Abigail • Twenty one. Still taken. Still tired.
I need to vent:
So I work in a vet hospital (the buisiest one in my area). I'm a receptionist/VA. I was scheduled a 9-8 shift, whatever that's normal. But my boss calls me at 7 AM saying I have to get to work ASAP because the opener was sick (she gets there at 6:45). So I jump out of bed and leave. Come to find out the girl just drank too much the night before and didn't want to come in. So I've been here 6 fucking hours doing the work of THREE people, finally got some back up, because some bitch wanted to get drunk. And she has tomorrow off. 
Seriously? Don't fucking party if you have to open the next day. I got 4 fucking hours of sleep yet I'm here busting my ass even though I actually feel sick. 
Literally so overwhelmed I cried today. I have 6 hours left of my shift and I'm already so fucking done with today.