My father was an abysmal dad but a wonderful grandfather. My mother was taught that the man was always right (!!!!), so rarely stood up to him. He left the family home when I was 17 and away at nurse training. The repurcussions are still echoing through our family 50 years later,
I severed contact with my mother and 4 of my sibling 40 years ago, to protect myself and my daughter. I still do not have any contact with 2 of them! (Very complex, complicated back history that includes abuse!).
It isn't easy to walk away, even harder to stay away, but the freedom is worth all the heartache and guilt.
At 93 he is never going to change, never going to be the father of your dreams and while you still contact him, your father will continue to manipulate your feelings.
Let go, take your life firmly by the hand and walk into a bright freedom.