Hi hun, I work a lot of nights too. Some think I'm mad but I bag up my packs into days of the week, that way I know where I am when I'm on nights.
What time are your shifts? I work 8.30 to 7
The day before I'm working is the hardest. I stick it out as long as I can before having my first shake, have my second shake in work between about 10 and midnight and my third in the witching hour between 3 and 5.
I sometimes need my third shake earlier so I would have the first shake of the next day either before I start my round in the morning or before I go to bed.
I hope this has been useful but it will be trial and error for a while. I would also suggest starting on your days off so you are in ketosis before your first night shift xx