I used to work ar a bar, and party every night into the next morning, then covid hit and I was trying to get sober. My sleep schedule was a mess, so I feel your pain. Its actualy torture being awake, sober, while everyone else slumbers away at night. Things will rven out eventually but it did take time and patience.
Somethings that helped me are;
-Magnesium suppliment
-When you wake up go outside and look in the direction of the sun (not at the sun) - getting sunlight your eyes as early as you can will help your body clock adjust. Maybe even set an alarm and do it early, and then go back to sleep if you have to.
-Melatonine can be helpful for the first bit as well, to help you get drowsy, but I think its best tobuse it sparingly.
-Workout during the day to force exhaustion on yourself.
-Fresh air and sunlight tend to exhaust the body as well.
-Water and nutrition balance, so your body can relax and get out if survival mode.
-My sisters all drink bedtime teas and swear by it.
Good luck!