How not to sound weird when talking to authority?

By remembering that a person with authority has it because they either earned it or it was given to them. Which means, they are just like you and are doing the best they can as well. Further, remember, that you are an authority about yourself, that whatever they are telling you, maybe a projection of their own insecurites. Authority figures are people, people do well, they make mistakes and they can help you when you ask them do. Authority doesn't mean they are better than you. It means they have been placed into a position of power and they need to wield it for the benefit of those around them including you. Plus if they misuse their authority, go to someone above them, to help you with your situation.