You know that rule “shut down all screens” 1 hour before sleep, but there’s always something to watch/to program etc. Have you found the discipline to do it regularly?
How do you deal with the going-out in the evening, if you strive to wake up at that time?
Do you have some interesting/intense routine like running, which was quite common in american movies?
Biological clock. After doing it for months I know feel sleepy around 10am, hit the bed, and wake up around 5.30 everyday. I set an alarm at 6am just in case but I usually wake before it.