Wow it's amazing how your shift layout is different to here in NSW. We, on average, do 2 day shifts then 2 night shifts....with the occassional overtime shift thrown in for giggles. Some departments have operations going so your roster for a fortnight can be a little how's it going - but usually it flows ok
I have a hard time adjusting back into the swing of things when I come of night shift - always feel as though I haven't gotten enough sleep. I have become more of a night owl since becoming a shift worker.
As in a remedy for getting back into a routine - sorry can't help you there - being a shift worker in a Police Force makes you very different to the rest of society