Started off yesterday feeling anxious and crappy about my job. When I got to work, I made a little list of what I wanted to get done that day and, more importantly, when I would work on it. So I had a task for the morning, and three tasks for the afternoon. I didn't get everything done, but having a bit of a plan helped. My mood greatly improved as the day went on.
There's a lot of activation energy involved in getting organized, but I really am much more relaxed and productive when things are organized. I'm not feeling quite as hopeless about my job as I was last week, which is good.