'I can't do this anymore' - is what I've been thinking every morning at 4 when I wake up. At around 12-3 when inevitably some emergency happens. At 3 during exits. At 8pm when we still have work to do. At 11 when I look at my socks and wonder if it's worth it to bathe.

What could possibly justify...?

I'm so tired. I might not be safe any more. I'm scared I'll make an irretrievable mistake.