mature bridal wear for older women over 40/50

I need some advice if I should put my dog down soon or not. She's a 13 year old beagle. She walks into things and can barely see. She gets eye drops for her immune keratitis. She has hyperparathyroidism, so she drinks a lot of water and pees anywhere and everywhere in the house, and I mean constantly peeing. She also poops inside the house whenever and wherever. She has a dog door, but she can't see it. She went in and out by yourself for years. She likes to be outside and go for walks. My family says to have her put down. This is my first dog that's mine and not a family dog. I've had her for over 4 years. Has anyone put down their dog for excessive urination and blindness etc,? mature bridal wear for older women over 40/50