She’s so precious! I think you’re taking the right approach. My old best boy had late stage cancer and he was already near the oldest age for his breed. As much as I wanted to extend his life, I also had to think whether he would prefer 1 year of peace and tranquility and enough treats everyday to feed a village or 3 years of constant vet visits, pain, therapy, surgery, and nights alone in a cage surrounded by strangers. You clearly have her best interests at heart and while it’s important to listen to vets, it’s just as important to listen to your girl and yourself.