Sending you loving and healing thoughts...
before I say what I'm about to say, I want to tell you that I do not partake any drugs, legal or illegal, and also, I had a very mild form of cancer in 2003. But, have you considered medicinal cannabis oil? Also, the Gerson therapy has cured people in situations where no survival seemed possible. There is also a lady called Angel, she was given 3 months to live, years ago, and she recovered completely and has been cancer-free, without radiation or chemo. Please look up Angel's holistic bootcamp.
You are going through an incredibly difficult thing, and one way or another, it will make you a better person by the end, whatever that end will be. My thoughts and love is with you.