My mind has just sort of...shut down. The best guess I have for the problem is that I'm pretty much TripleShifting: Work, Schoolwork, and my leisurely activities. At the detriment of all three, mind you.
Butstill...I've been doing them all for the last few weeks, and while I've been struggling to do them all, I've kept a fairly healthy sleep schedule for the most part, getting the normal-for-me amount of 5-7 hours, averaging 6. (Except on Saturday nights.)
I've been fine, but all of a sudden...not so much.