Very sorry for your situation, I wish the best possible in the future.
When my mother was 80, her Dr. told me "surely she won't go beyond 83". She just turned 100.
You are naturally depressed, I would be too, but I join others in advising spending a year of natural recovery as it may be, as well as reading/seeing what's out there to aid the situation.
Just like Audio, Avoid the Quacks. Best of Luck.
Elliott