Sorry to hear of your loss of Bridie Polnan. I lost my old girl, a Standard Poodle, 6-years-ago. I can’t believe it is so long. The house was too empty to remain without a dog, so not too long after losing her we got a Toy Poodle puppy. We’re both retired (though young enough to be likely to outlive the dog) and both have arthritis, so were concerned that we might not be able to meet the needs of another large, active dog (we had always had large dogs) throughout it’s life. 3-years after getting him, we bought his half-brother.
Please allow yourself to get another dog. Toy breeds can get enough exercise in a garden (ours run around more in our little more than average size garden, than they do when let off their leads on a walk). Our dog’s breeder (she has had her last litter) is an elderly lady who is way past ‘dog walking’ stage of life. She has three Toy Poodles, one elderly, one aged 9 and a youngster (her brother will have them if anything happens to her). We visit with ours. Her’s are very happy, healthy dogs. If you want to go even smaller, there is always the lovely, clever chihuahua. If you are worried that a dog might outlive you (and lets face it, that can happen at any age), you could discuss with a relative and make an agreement with them if possible, put a charity of choice to take your dog (please not the RSPCA, they are awful) in your Will (or in a letter kept with your Will). If a relative cannot commit to have your dog, a breed society rescue tend to be the most reliable in selecting an appropriate home that can meet your dogs needs. For us, that is Poodle Network UK. Alternatively, you could find an elderly dog, or a older Toy dog from a rescue.
Also to those who say people shouldn’t buy pedigree puppies when there are dogs in Rescues. I understand your view, but different breeds come with different characteristics. I also have two Siamese cats. The same applies to cats. Siamese are very different to the average (lovely) moggy. They are highly intelligent, hilariously funny in what they get up to and like the cat version of a dog. So buying a Siamese kitten gives something completely different to a moggy and indeed, to other breeds of pedigree cats. It’s not that easy to find a rescue dog who is totally at ease with cats, or for that matter chickens, which we also have! I have had a rescue dog, but please bear in mind that there are sensible reasons for buying a particular breed of dog as a puppy, to be raised and socialised as you need it to be.