The best way to adjust to night shift is to drop any negative attitude or thoughts you have toward the shift. You either hate or love it with no gray areas? Not true.
I noticed that the biggest barrier most have working nights is that they are the most negative people regarding nights. They site various sources to justify their negative attitudes and point to them when it does not work out when in fact, their negative attitude is the big reason that it did not work out.
Also, your family and friends need to respect the fact that you are sleeping at a time they are wide awake and that you are working when they are winding down for the night. If they do not have a clue and cannot respect your time to sleep and your time to be at work, then cut your phone off and check your messages when it is convinent to do so.
The pros to working nights (I have worked 8s, 10s, and 12s as a night shift worker) are that I have way more time to perform personal chores, run errands, volunteer, join committees, and attend family functions etc. working nights as oppose to day shift....
Do not get me wrong, I know that it may take you a few days or even a week to adjust your sleep cycle to the shift, but that does not mean you will never adjust to the shift. Again, attitude is everything because working nights is a lifestyle change if you have never worked nights.
By the way, in order to assist with sleeping during the day, keep your room dark and quiet (turn off the phone and TV), stay away from too much caffeine at work prior to going home, and take care of yourself by eating right and exercising on your time off. Good luck.