I completely understand. I have been working nights now for 4 months and it is a hard adjustment. Just remember it will get easier and you will find a scheduel that suits you best. I think it is draining to go back and forth between days and nights, so I try to adjust on my days off, by getting up around 1130am, instead of sleeping in longer. Your friends and family will adjust too. It is irratating to not have a set scheduel or even one where you work 4 in a row and have 5 days off. Your employer should have something like that set for everyone on nights! To give them some sort of life outside of work. Just keep trying to see if they will give you a set scheduel.