Heya,
I've always had my problems with the word "gender role", such as in "do you live constantly in your new gender role now?". Not just because it is translated into German as "Geschlechtsrolle", which is a pain to pronounce as it's spoken with 4 consonants in a row (chtsr). But for other, more fundamental reasons as well:
1. It's not a role, or at least I hope it's not. As far as I know, this word "role" comes from sociology and does not mean playing a role like if you were on stage, but fitting in a social box (policeman, mother, bartender, grandson, leader of a club, sports team member etc.). Which means, you need to behave more or less according to the expectations, AND people around you need to accept your role so that it works. However, I don't like that word because of its allusions to not being real, playing etc.
Moreover, "gender role" is not specific enough to mean anything. In example, little girls are expected to behave very differently from young women, from middle-aged women, from elder women, from female seniors etc. And that's just the age playing in here, I'm not even talking about the other aspects. So I think, the correct question for people who change their gender role would not be "how do you feel in your new gender role", but "how do you feel in your new gender role, if most of your other social roles have remained the same?".
And I said that often, but let me repeat here that the obligatory or almost obligatory one-year "real life test" before hormones in Germany and several other countries, just to find out "whether you can live in your new gender role 24/7" is ridiculous, potentially soul-crushing and probably not in accordance to the human rights. I mean, in those cases who don't pass well before hormones but will pass once they're on hormones long enough. As, in general, you won't get the new role mirrored by society well in the meantime. Which means the role you have then is that of a crazy person or transvestite or self-proclaimed transsexual or something like that.
2. There is no such thing as THE gender role. You get treated differently depending on your age, your body, style, mood of the moment, class, race/ethnic background, dialect, job, uniform, clothes, your personal background, history, education if they're known etc. Sometimes there is more overlap between how a man and a woman are treated if they have lots of things in common than between two people of the same sex but who differ in many other aspects. However, as the "gap" between men and women in our society is huge, a person's perceived gender/sex plays a big role. Nevertheless, I suppose that my "gender role" change made less of a difference in my everyday life than if, e. g., I suddenly woke up tomorrow as a black dude with a strong black African accent, an exotic black African name and had to get along here in Germany.
I had a couple of black African friends who were like that, and they told me very "interesting" (mostly sad or amusing) stories how they were treated here, what prejudices they faced, and I saw a bit of that as well when I hung around in town with them. Basically, little kids thought they were from "Africa", which they thought was a single country where it's always warm and where all the tasty chocolate comes from unless it's from Switzerland. And where people lived in huts in the jungle or savannah, chased lions and giraffes the whole day through, made party at night drumming, singing and dancing around a campfire, and wore fancy costumes and archaic, impressive jewellery, and had exotic painted weapons for the chasing. Well these ideas are perfectly okay and cute for kindergarten or elementary school kids. The problem is, many adults had kind of the same ideas, just replace the single country and tasty chocolate aspects with "they just want our money, are primitive analphabets and stupid but have huge d*cks, are good lovers, ->-bleeped-<- around with any women and spread AIDS all around".
P.S. I ask for apology if I did not get the right words for black African people, but I'd be happy to be informed if I made something nasty here with the vocabulary I used. English is not my mother tongue.