I'm so sorry to hear about this Gilmer.
A very dear friend was diagnosed with glioblastoma multiforme in July of 2015, on her 45th birthday. Inoperable. Given 3-8 months.
I'm seeing her today for the 4th. She will eventually die from this...virtually nobody survives this cancer (brain cancer), but she has gotten FAR more time than anticipated. Her life is as close to normal as possible. We are meeting for a movie, dinner, and fireworks, which will tire her out, but not horribly.
Everyone has their own path. Hers has been chemo, radiation, a severe keto diet, and experimental head magnets. Her tumors have shown slight growth and we think this is the end (glio can double in size in a week), but so far they have more been hiccups.
She is living life as fully as possible....one day at a time.