I think my dad is crazy
Why do you think your dad is crazy?
When I talk to him he doesn't even respond, he will just stare at me. Respecting me by talking isn't his thing.
That sounds terrible, are you sure that he isn't going through some sort of mental health break? My psychiatrist friend would recommend that you attempt to speak with him and find out what's wrong.
Don't be annoying, he is probably treating me like a kid.
That may be the case, but most people would want to make sure because it could be something much more serious than just that.