MY CURRENT ROLE

My current role .. I feel my father is the most annoying person in the world, starting from the bad things he did that made me able to hate him. But many people say do not hate it. How can I do it. And his treatment to me and to my grandparents made me think more and more to create a better future without affection from him. And the hurt he gave me every day when I did not want to think about it. And the questions I want to ask you. Dad why are you different ??