My Mum was diagnosed at 62 with breast cancer. She will need lots of love, care and attention, but in our case anyway, she had the treatment and despite everything at the ripe old age of 72 she as had no reccurence. I wouldn’t give up hope yet. My Mum’s was quite an advanced state and had to have part of her breast removed and all her Lymph nodes removed from her arm, which still gives her a bit of gyp but other than that has a full and normal life now.
Hope all goes well