Hi,
I am 54 myself and an activity director. My children are not far from 25. Just a little older. For me and I think for my children, social activities are so important. A thought that I had was to find volunteers who are close to the age of these younger residents. Find out what your residents interests are and try to taylor something specifically for them. A volunteer could help facilitate the activity and you would have more time to spend with the older residents. If possible, could these residents also assist you in activities with the older ones? Just a thought. Good luck.