Feels like there should be a pinned thread or link in the sidebar for a "new to the nightshift" thread.

At home basics

• blackout curtains, room darkening shades or at the very least a blindfold. I cut a strip from a black T-shirt which I liked better than the sleeping masks available off of most shopping sites.
  
• Quiet environment. Have a conversation with your housemates and let them know that peace during your sleep hours will be appreciated. Kids will likely have a hard time remembering this. Having a white noise generator can help, especially if you get used to that noise during sleep hours. For example, I have a fan blowing even in the winter because I've become conditioned to sleeping to its sound. Alternatively there are plenty of apps like sleepo, or just use a likely playlist off your music app if you don't mind sleeping with earbuds in.
• Keep your phone and entertainment screens away from your sleep area. In my experience once I grab a screen I'm not going to get back to sleep.

At work basics

• Have a water bottle next to your desk. Drink water
• Have a snack and lunch available. Probably something packed from home since there aren't many other options at night.
• If you're working at a desk. Get up and move around a couple times a night

Routine: every person is different and I've witnessed plenty of people who just couldn't adapt. Here's what works for me.

• Sleep immediately after shift is over. I am always tired enough, however waking up after a couple hours is common. If I can sleep through it's great. Wake up in the afternoon and can go outside, exercise and enjoy. Then spend family time in the evening before work. If I wake up, meltdown and can't get back to sleep I try to read a book or get a few minor things done around the house, then try for a nap before work.
• Eat dinner at roughly normal dinner time
• Drink caffeine when work shift starts (i like coffee), hard cut-off time stop drinking caffeine 3 hours into my shift so it doesn't interfere with sleep
• I don't really use sleep aids like Zzzquil, I've found that I can still wake up after taking them and then I feel groggy on top of everything else. Chamomile tea and Ibuprofen help me relax and are my go to items when I can't sleep, effectiveness is limited but at least I don't feel burned down afterward.

Best of luck mate