When I lie down to sleep, I can’t stop the thoughts. I review everything I did that day and look for my mistakes. Or I am planning for tomorrow. Or I have to get up to urinate—or at least I think I do—and I watch the clock. Then I start thinking, Oh no. I only have three or four hours left to sleep, and I have to sleep. If I can’t sleep, I will not be able to work tomorrow, then more clock watching and worrying about sleeping tomorrow night.

