since the beginning of everything

 And I still have two shifts to get through. It's a miracle that I haven't completely broken down, physically or mentally, but yesterday's shift started rocky. They changed the rules on me, purely for this week, while I'm trying to teach a newbie how things work. Argh. I got a bit frustrated with everyone, calmed down, and just buckled in.
Today's just a 6 hour shift, but tomorrow is 9 hours and I'm really not looking forward to it at all.