So sorry((( You really had so clever and beautiful dog. I understand you, fewer years ago our favorite cat passed (british shorthair, 12 years old). Hugs to you.
It will be hard not to hear familiar sounds in your home. It will take a time to overcome it. Maybe then you can get a new pet - a dog or a cat, or even more exotical being.
We took a kitten that year. It has opposite character, it`s a truly bully, but we love it) And we love and remember our late cat too.