No matter how good writing is (say, essays, or journals), there's a point where reading them is just work. I'm at that point with one of the assignments I'm grading. The first few were good to read. The next few tolerable. And now I'm to the part where they're just work to grade.
In writing a journal assignment, one of the writing students said zie was in the class because zie had to be. Seriously, I know how that feels. I'm in the class because my paycheck depends on it. Every day, I'm in the class because my paycheck depends on it. And I try to make it a really good class and a good learning experience because I think that's my ethical responsibility and also because doing poorly would make me less happy. But it's not like I come to work and teach comp just for the sheer pleasure.
I went to bed at about 8:30 last night, and I feel so much better today. Sleep is a wonderful thing!