Yes, I’ve awakened in the middle of the night trying to remember if I’d taken all my exams… and I’m in my 30s, now.
And yes, the first line is a reference.

You bastard. I just had this exact same nightmare a couple of weeks ago. Monsters don’t scare me; serial killers don’t frighten me; but ending up back in high school terrifies me more than anything. Now I won’t be able to get to sleep tonight. Thanks a lot. : )