Hahaha no, definitely far from half dead River. I agree with you, it's all in your mind and how old you feel you are instead of how many years you have under your belt.
It is so precious that you were able to talk so openly with your dad, I am sure that that in itself presented so much comfort for all of you and peace with the eventuality when it does come. Everything that you have said about him really does sound like he's a good man.
Sending you a big hug 🌻