Recently

Is it due to chronic sleep deprivation? My comprehension, reading skills, and writing abilities all seem to be declining. I know I should just sleep properly, but I only have my own time at night, so I've gotten into the habit of staying up late. I think about switching to being active in the morning, and that it would be better to switch, but the ingrained habit... I just can't seem to put it into action. I guess I need to be a little stricter with myself about my lifestyle...