Reasons I'm having trouble getting through these papers:
Bad papers make me wonder if I'm a bad teacher.
When people I like write bad papers, I feel even worse.
I shouldn't personalize this. It's not about me. It's about spring fever, senioritis, jobs, children, other papers due, time crunches, illness, stress, lack of sleep, and remembering that it's better to turn in something than nothing. It's about recently-acquired skills deserting stressed writers.
Right? Tell me it's not about me.