[bsuh]

Some of the advice amounts to "just do it" or "insert inconvenient forcing function" like spending a week backpacking, which would be difficult if your sleep schedule is affecting your energy and mood.

I've tried forcing myself, but it tends to be fragile. Go to sleep late just 1 night, have trouble forcing yourself to sleep the next day, sleep schedule gets worse again, get frustrated, give up.

What I've been having success with is a full spectrum LED light, which I use for an hour in the morning, and a blue light filtering goggles, which I wear from sunset. I can literally feel the goggles working as my eyes grow heavier a few hours from sunset, resulting in my falling asleep around 11-12 and waking up around 6-7.

Admittedly I've only done this for the past 3 weeks after reading about the full spectrum LED light from https://blog.samaltman.com/productivity. But it doesn't get easier than turn on light, put on goggles.