I lost my dad to prostate cancer last year with much the same timeline. Healthy as could be, out surfing and building decks and shit one day, dead a year later.
Really sorry for your loss. My dad died of cancer about 20 years ago when I was pretty young. It has gotten easier over the years, but still, sometimes it feels like grief punches me in the sternum. Wishing you the best.
I appreciate that. I have my good days and my bad days. Nothing to do but keep on going.