sister
MashAllah how wonderful that you are trying to wear Hijab
I am very sorry your father is giving you such a hard time with this topic. But you know you are on the right path and you know it is the right thing to do.
I don't want to create any trouble in your family but if you ask me just do it. I am revert and of course my parents did not like the fact that I am wearing Hijab as well. But I couldn't just not wear it because they didn't like they idea. To me it was important to obey to Allah and follow what he has commanded us to do. I also had many discussions with my parents and at times they were very upset. But alhamdullilah they got over it and so will your father inshAllah.
I will make Du3 for you so Allah will make it easy for you and inshAllah your father will become a good Muslim as well.