Never Satisfied

Its 2 o'clock in the morning and I am at work. I am in the nursery right now and only have three babies to look after, I should be thrilled. The last few weeks have been crazy with not enough hours in my 12 hour shift to get every thing done. So I'm putting it nicely when I say that I have been cranky and worn out. But not tonight. 90% of my work is already done and I am just literaly hanging out for 5 more hours. Then I can go home to my baby and take care of her instead of everyone elses. But it is going sooooo slow that I am once again cranky and worn out... I am just never satisfied at work...