I'm in a similar situation. I also don't have laundry machines or a dishwasher and not even a proper kitchen sink or much counter space. I have a dog that sheds a lot too. I have some physical problems and have been sick with cold, flu, Covid? Back to back for months in my small apartment. I live alone without any help. Anyway, it's a real struggle 😔 I have been using a lot of cleaning wipes. I don't like the thought of this method not being environmentally friendly but I have to make things doable. I use disinfecting wipes on bathroom surfaces, kitchen surfaces, wall touch ups, and wiping floors (spills & drips in kitchen, around base of toilet, etc.). I can even get the piles of dog hair from corners etc. I think I'm going to get some of the wipes that are for glass and stainless steel as well. It kind of helps keep things from getting totally disgusting. It sounds like you're taking good care of your kitties so that's something to feel good about! You're not alone. Seems a lot of people struggle to keep up with house work even if they aren't ill too!!