Hey, Tatiana!
I'm sorry to hear things didn't really seem to be going anywhere with your old/current therapist; despite them being nice people, as you say, get with the times!
I agree completely with Harley. I have very little experience with therapists(only 1 20minute session so far) but one thing they were trying to get an idea of who I was and they said, "You certainly present as female, to me." And since you said yourself that you are less likely to get upset and more cordial while wearing what you like, I think that honest goodness can only serve to help you with your new therapist.
I am glad you'll be getting a new therapist that is more in-tune to the concerns and issues around people like us! I'm sure others have had to go through the same stories, experiences, and trauma with multiple therapists and I really hope that you won't have to keep repeating yourself once you get to meet with your new one.
Also, it's really cool that you found a fellow gal pal in real life that you can talk to, and who supports you. That's awesome!
I wish you the best, and tell your wife, "Thank you!" for me! My wife is going through a lot right now with all this, and I've tried to show her Susans before(eve get here to join the SO board) but she seems confrontational about it. :/