Well... I'm too old to transition. (They always say you're never too old. But for me, I'm too old.) However I have also feared doctors in the past for a variety of reasons I won't go into. I still do. (I have seen some hostile, unfriendly doctors in my day.)

I don't know if I have any particularly great answers to this. (I actually seldom see a medical doctor. And, in fact, I just received a letter a couple of days ago saying the doctor I did see occasionally is no longer with the clinic where I saw him. (He was an older man. It's possible he retired.) So I'm now without a GP entirely.

One thing that has occurred to me is that, at least where I live, I think there are lists one can access of LGBTQ+ friendly physicians. So now that the doctor I used to see on occasion is gone, I might check around & see if I could find one of those lists. I would suppose there might be something on the web. Or perhaps I could contact our local LGBTQ+ advocacy organization & they might have something.

I do know some medical clinics nowadays even indicate, on their website, they're LGBTQ+ friendly. I suppose one other thing a person could do is to call a particular clinic one thought one might be wanting to be seen at ahead of time & ask about their LGBT policies. I don't know how much genuinely useful information one might get from that though.

Of course, presumably, the doctors you'll see in the process of completing your transition are going to be considerate & supportive since working with people who are transitioning is at least a part of what they do. But as for the rest of the medical profession, there is always some risk in seeing someone you haven't seen before.

I don't know how one avoids that or that there is any simple way to deal with it if-&-when you unexpectedly find yourself in an exam room with a medical professional who thinks they somehow have the right to diss you based on your gender identity. Of course, ultimately, you do have the right to simply walk out if necessary. There's no rule that says you're required to put up with some ignorant medical professional's abuse.