It's not easy to watch the strongest man you've known in your life suffer and succumb to this. It was one of the hardest things I've had to deal with in my life and I had cancer when I was 17. I was just at the point in my life when my Dad would have become one of my best friends.
I never saw my Dad cry during all of it, Don't let your's see your pain and hurt, He knows it's there.
You probably didn't spend enough time with him during your life and it's gonna be hard to make up for it now, but you have to try.
If God brings you to it, God will take you thru it!
Prayers sent and thanks for making me remember my Dad.