Yes you say your Dad was a drunk. Been there, done that. It took a lot of courage for your Dad to call. You can talk to him. Pray to him. He will hear you. God will allow that.
My bro. is a biggest asshole I ever seen. He treats everybody in the family like crap. He even rips off my parents whenever he can. He hates me so very much because I am better than him. He is a toxic asshole.