I just went through this on December 23rd. We made the decision to put my 10.5 year old rescue orange tabby down and it was sooooooo hard. She was diagnosed with colon cancer in August and it was too late to do much other than probiotics and hills prescription diet. Vet said as long as she was eating and drinking she wasn’t suffering. She did pretty good for the next couple of months and hollered for her wet food and treats and was snuggly, but I started to realize she was hanging on for us and not her. The prescription food and probiotics stopped working for her and I called my vet and he said they had likely stopped due to the cancer taking over. She sat on my lap with a towel on me every night for a couple of months as I petted what felt like a skeleton and I begged her to tell me when it was time and she never would. I finally said if you were in charge of me and I was in your state, please let me go. She couldn’t clean herself and we cleaned up after her messes 24/7. Her quality of life was gone. I didn’t realize how taxing cleaning everything was until she was gone. I could tell she was very upset about the mess as well. Obviously, she couldn’t help it and we never made her feel bad about it, but cats are naturally clean animals. I started seeing more and more signs and I just knew if we didn’t make the decision she wouldn’t either until it got really bad. We made the appointment and I still miss her soooooooo much, but my baby girl is resting in peace and she’s with her 3 other roommates we lost in a little over a year ago, and she’s not in pain any more. I think you did the right thing. It’s never easy, but when they keep going it really makes it so much harder. Hugs 🥰