Huh. I don't have sleep deprivation as an excuse either, actually -- seven and a half hours, minimum, because otherwise I just fall apart too. I watch my classmates as they go to sleep at 3 am and get up at 7 or 8 and I just ... I can't do that anymore.

I think your brain is full. That must be it. There's just not enough space for new memories because you've been jamming your head way too full of School Facts.