[TeMPOraL]

I won't say it's impossible for me, but there's a huge, tangled mess of psychological, social, habitual and lifestyle reasons that prevent it. Starting with, ever since I finished high school and was no longer forced by my parents to get up on time, my natural awake time is between ~11:00 and 04:00. Any attempts to shift it to what society considers normal tend to drift back to baseline within a week. These days, 報復性熬夜 (revenge bedtime procrastination) is a significant factor, too.

(It's 00:15 here as I'm submitting this comment; I'm fully wake and alert, as opposed to how I was 3-4 hours ago.)