I understand you perfectly, I think that during my childhood I had a similar feeling, I never had a relationship with my father, I never had that affection or love of father towards son.
I was always or was kept away from that feeling, perhaps because he did not feel affection or love for me, or who knows.
But now that I am a father I see different things and that fear that I had that if I could give that love that my father did not give me, it is long past I am happy with my son and I live every day demonstrating my love for him.
Life gives you opportunities and little by little teaches you that things can be different.
RE: Reflections on fatherhood after being a dad for 12 years and living with my father for 10 years.