Hello Emily,
I too have gender dysphoria and my wife has various boundaries with me these days.
Daily I dress unisex in my look. I do wear bras and panties. I actually need the bras now as I am almost a size B. Most of my new clothes that I purchase are from the woman's sections and can be worn as unisex. Mostly I am coded as female but new people I meet. Anyway I now feel good in my skin.
But to go further and my wife also would be quite unhappy and we could/would end up breaking up over this. Yes a fine line - one of acceptance and freedom versus going all of the way with additional hormones and sex change.
Wish you the best. Dawn