Been a while, but here's what I did (for ease of following, let's assume Monday-Sunday is the workweek, meaning the last day is ON Sunday night, go home at 0700 Monday AM:
End of Day #7 of ON, 0700: Go home and nap for max. 4hrs. Awake 12pm-9pm (taking it easy, household stuff, etc...). Get back to sleep early. Ta-daa, schedule flipped!
Day #5 of OFF: Start to transition to night shift by progressively staying up later and later. So I'd sleep at midnight/1am here, try to sleep in next day.
Day #6 of OFF: Start sleeping at around 2-3am.
Day #7 of OFF: Make sure the house is stocked up with food, laundry is all done, meals prepped for the week, car has gas, etc... The last thing you want to do is any of this stuff while you're on. Sleep at 3-4am if you can, sleep in next day.
Day #1 of ON: Sleep in through noon at least. Fit in some last minute errands, have an early dinner (like 5pm). I personally took a quick nap right after this dinner from 6-8pm, then rolled into night shift after that. For some people, you can't do it, or you get groggy after.
Day #3 of ON was usually the worst for me, not sure why. Once I got passed that, it was smooth sailing to day #7.
Key points: meal prep (avoid fast food, stay hydrated, night shift is stress so heavy/greasy foods are like double whammy to you), have good sleep hygiene (blackout shades, phones/devices off... one tip is to keep a small mattress in a windowless closet in case you have a buzzing household w/ kids, my border patrol buddy does this), and find ways to keep the night moving (bluetooth speaker with your own music is a godsend). Don't forget pharmacies can have fluctuating temps overnight, so always have layers available. Limit your snacks. Keep a timer handy so you get up from time to time if that's how slow it is.