I agree with myself (oops, that sounds arrogant

) fatigue can sneak up on us even when life appears smoother than normal imo...
going to bed at that hour is not unusual for professional ppl, btw... and for us who need more time to rest, it's a good time imo (I like it best when I'm asleep by 10 pm personally.)
Pacing is something I had to learn...and still struggle with from time to time... not overdoing yet doing all I can to stay distracted