As naimh says you shouldn't be making demands to these people. They hold the keys and they make the decions. It will just threaten their egos.
I suggest that, at your next meeting, you chat for a few minutes then ask if you can start your HRT today. If he says you're not ready yet or something like that, stay very calm and say that you think you're ready niw. He will almost certainly ask you why you think that?
Your say something along these lines, (Though try to be spontainous and natural).
This is something I've needed to do all my life. I understand the risks, I understand that there will be many new problems to face. But my life is largely empty because the world relates to me as male and I know I'm female.
I understand you need to be caucious, but you know me now. You know I'm serious and determined.
And so on.
Be prepared for questions such as why do you think you're female? what sort of problems do you expect? when did you first think you were a woman?
Answer each but stick to the point.
Be resolute but never rude, or angry.
