Three generations of a cactus

20 years ago, my son gave me a Christmas cactus for my birthday. Over the years it deteriorated and I took one cutting. It's getting a little old and wilted and I've tried different things like feeding it sugar, fertilizing it repotting it several times to try and get it to perk up, but it doesn't really want to so I took some cuttings from it and when I was very successful with the first cutting, I did a second batch of cuttings.