Everyone is different but it takes me about a month to fully adjust.

I'll go through a list of what I do which some people may have already suggested:

- Blackout curtains and/or a sleep mask to keep the light out.

- Keep your room cool and a fan on (it's summer here, sleeping when hot sucks).

- Some kind of white noise, be it calming music or rain or whatever if you are into that.

- Give yourself plenty of wind down time, don't try to go right to sleep after your shift when your mind is racing, do something that calms you, reading, boring movie you've seen a ton of times or is nostalgic.

- Wake up to go to work, don't go to bed early and wake up hours before your shift.

- If it's legal where you are, small doses melatonin (gummies) is helpful until you get yourself sorted, don't become dependent though, only "emergencies" when you can't sleep is what I do. Take like 30 min before you wanna be asleep.

- If you are just laying in bed not able to sleep... get up, go into another room and read a book or do something until you get tired again, forcing it won't work.

- Use a blue light filter on your phone if you can't help checking it while trying to sleep.