I've worked that shift at length a couple times. It's really tough for the first couple weeks but after a while your body acclimates to it if you take a few steps. I'd suggest doing these things:
1) Dark, Dark curtains. You're going to be trying to sleep while the rest of the world is awake.
2) Eat well. I had a nasty habit of eating more food that was bad for me for some reason. Put on a lot of weight that I'm now trying to get rid of.
3) Get into a routine and stick to it. Sleep 8 hours a day on a regular basis. Get up at the same time every day and do something.