My dad didn't react well when I came out to him, what should I do?

I'm a girl, and I came out to my Dad, because I'm gay. And he wasn't very accepting, and, from my point of view, he refuses to believe me. He still gives me guy advice, and sometimes I just want to yell at him "I'M GAY!" even though I already told him. My mom reacted just fine. I don't understand, because my sister is biual and he was totally cool with it. Should I confront him on this? What should I do???