How can I adjust my sleeping pattern to work for my evening shift?

[Jessica]

My work calls it a Night shift but it's more of an evening shift to me. However, it's from 4.30pm to 2.30am and I get home about 3, after i've got ready for bed and taken my make up off, i'm in bed by 3.15ish. My body is having the biggest trouble adjusting to it. I can't seem to adjust. It's making me tired, hungry all the time, irritable and emotional too it seems.

I generally try sleep from 3.15 to 10.30/11am so I have a few hours during the day, but when I get to work i'm starting to get hungry as I know dinner is usually around 6-7 and our dinner breaks aren't until 9.30pm, so I snack a lot. I've gained 5kg since doing this evening shift. My body automatical around 10 wants to go to bed. Even though it should be wide awake from the 8hrs sleep. If I sleep until 1-2 for that 10hrs... It's still the same. It's really annoying, no matter how much caffine, tea or soft drink I have, I cannot wake myself up. It's really effecting my work. Not to mention I do some very repetitive and easy work, only a few people work in my area of the office so there isn't much social interaction and I get so bored doing it too... My body just won't adjust. Any tips would be amazing. I can't keep this up.