@TyroTerf
It's up there with 'What does "live as a woman" mean?' and ''What is a gender identity?' as questions which are never answered.
Which is annoying, because they're incredibly easy questions to answer!
Obvs the first has two possible answers - living while being female, and living in accordance with the local stereotypes associated with being female. The second looks confusing at first glance because of the standard conflation between sex and gender, but again it's simple: sex identity is what sex you know you are based on your body, and gender identity is where you locate yourself in relation to those pesky local sex-stereotypes.
They are easy questions to answer, in the way that you have, but then that raises another question: 'Why are sex stereotypes being invoked when we are trying to get beyond stereotypes?'
Children are being taught that stereotypes are bad, and there are no such things as "girls' toys" and "boys' toys", but at the same time they're being taught that if they like the 'wrong' toys for their sex, then they might be transgender.
If a little boy likes dressing up in princess dresses and playing with dolls, is he 'living as a girl' or is he just a boy who likes those things?
Where do you draw the line between someone who is 'living as' the opposite sex and someone who is simply not conforming to stereotypes?
Anything which can be done by both sexes can't be described as living as the opposite sex since both sexes can do it. Some men like to wear dresses and make up just because that's what they like, or because they get a sexual thrill out of it. Some men wear dresses and make up and say that means they're living as a woman. But since there are some men who do this and don't say they're living as women, this is something which can also be described as living as a man.
The only things which are 'living as' one sex or the other are things which only one sex can do because of their anatomy: a man who rapes someone using his penis is living as a man because women don't have penises; a woman who becomes pregnant with help from a fertility clinic is living as a woman because men can't get pregnant.
And having a gender identity is pointless if you think sex stereotypes are bad - why would you want to describe yourself in terms of those stereotypes?