I offer you my sympathy for your ordeal and my respect for your commendable attitude through your time of trial. Respect for human life seems to be in rather short supply on this thread tonight, and your comment is encouraging to those of us on this side of the issue.
We went through the same thing at our house a few years back when my beloved mother in law suffered primary liver cancer. She was gone only four months after diagnosis.
She had an unrelated surgery that led to the chance discovery of her cancer, and by then it was well advanced and everybody knew there was no chance of survival and they were honest about it. We brought her home with sound advice and everything we needed to keep her comfortable for her final months. There were a lot of good times and bad times in those few months, but every time we needed something, all we had to do was pick up the phone and Sacred Heart Hospice was right over with it.
She was alert and active up to about her final week. On this very day nine years ago she died about an hour after I gave her what was to be her final dose of morphine, which she could still take by mouth and swallow on her own.
Not many would have such kind words for their mother in law, but she was a treasure and a joy to be with. We are grateful for every day we had with her, and she was grateful for every day she lived. I can only hope that when my time comes the standard of care I saw in that experience will still be preferred over a hastened death.