8-10 residents is pretty good for second shift. The thing with 2nd is, things are really crazy for a few hours after dinner, and then it gets boring. Whereas on first shift the pace is the same all day. Not many people are riding your butt to get up in the morning, but on second shift you get all these people who either nag you to death to go to bed as soon as they take that last bite of supper or they don't bother with the nagging and simply try to launch themselves into bed on their own. Sundowning is less of a problem if you can get the agitated people into bed earlier, and it's easier to tell the alert people approximately when you'll be in to help them. I always used to tell my alert people when I was going on lunch break, what time I would be back, and I would ask them what time I should try to get to them, even though I knew what their answer would be. Having that conversation helps prevent the resident from ringing constantly and working themselves into a lather while you are gone on break or doing care on other people.
Where I work we get a designated shower aide once in a great while, but only on day shift, which has the most showers. And a few people will have a BM at the same time every day, but most of them just go randomly. Some nurses are freer with the laxatives than others, which can make a big difference.
2nd shift at my facility goes like this:
3pm: Pass out linens. Toilet/change all residents and get anyone who is laying down OOB. Walk the ambulatory ones while you are at it. In my facility, on first shift they all get walked in the hall with great fanfare, but on 2nd if you walk them from the bed to the toilet that is good enough because most of them are tired by then. Normally we get one shower apiece and if you can get it done during this time, fabulous. My facility sorta frowns on this, and I don't know why.
430pm: Someone should be doing all the vitals, another person should be refreshing water pitchers. Hopefully, you're not working with lazy people, or you will get stuck doing both of these things. If i have time I also like to go around to all my residents' rooms and get EVERYTHING ready for HS care- washcloths, basin, gown, toothbrush, pad on the bed, etc. Round up any supplies the resident has run out of, etc. I would also check on a few of my residents that are heavy wetters and change them again before supper, so they don't get lost in the shuffle after the meal, because that's the busiest time of the shift and you'll want one less thing to worry about.
5pm: Dinner trays come out. Pass and feed.
6pm: Start putting people to bed. CNA lunch breaks start. Try to get as many people in bed (washed or not) before your break time. Do HS care. I always elevate everyone's legs in bed all the way so they don't slide down.
830: You should be finishing up with your HS care. Pass out snacks, turn/change people you haven't seen in a while. Start your paperwork.
930 or 10: Final round. Make sure everyone is dry, turned, pulled up in bed, and there are no messes for 3rd shift, liners are in all the trash cans, etc. This round is easy. Then do whatever chores you need to do.