My father is forcing me to take Medicine

My father is pressuring me to do medicine for the past 3 years and I genuinely do not want to as it’s not in my interest. I have been telling him I do not want to do medicine yet he tells our family and friends that I’m keen on doing it when I am really not. Unfortunately he doesn’t understand my choices and my wishes. I picked my AS/A Levels a few weeks back (Physics , Econ, Business) and surprise, he isn’t happy with them. He does not want to talk to me and has texted my mother calling me an “embarrassment” and that I have “embarrassed him (my father)” as I haven’t followed “his” wishes and the path he wanted me to follow.
I haven’t talked to my father for around 3 weeks, and I just don’t know how to talk to him. He hasn’t been active in my studies for years yet he wants to control what I do.
Honestly I just need some advice to deal with this situation.
Thank you.