Just be yourself. Let your mind relax and be it's feminine self. Don't worry bout all the other things until your mind is comfortable. Instead of worrying bout how your voice sounds, let your femine mind say the words she wants to say. I think when you can truely be yourself, literally be a woman in a mans body, then you can start taking once step at a time trying to look, move and sound like a woman to others. I believe it must be the opposite of what most try, dressing and appearing female first, then letting their true selves come out.
beth