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?
I wake up at 5-5:30 every day without an alarm. I always get into bed an hour before I need to sleep and read a book while listening to lofi. It helps to calm me down and put me in a sleepy mood. I don’t have a tv in the bedroom, which helps eliminate possible distractions. Just keep doing it every day for a while and your body will get used to the schedule.