Please don't take any offense in my advice! It wasn't intended on how to dress, but more so how not to go overboard. It seems the ones that have problems with people accepting them more freely at work are the ones that go from dull guy mode to Barbie mode. This doesn't mean their all dolled up, it just means they are wearing a bit more accessories and different styles than other women in the work place.
You actually may have it harder with being a business casual, you need to look clean and proper but don't need to overdress. This can be hard for any female, for someone that is new...it can be even more challenging.
I was lucky, for one I didn't have to come out at work.....and I am able to wear casual. I get to really mix it up, if I want. I could...if I wanted to even wear a skirt....but never had the inkling too.
I guess what I am trying to say is that its hard to dress early on...and not just for work. For me, I didn't want to look too girly (though inside me I did) but I also didn't want to look slobbish. When I was in the in between stage I also had this same feeling, but it came after being gendered female. Often I would look more male than female, only to be gendered female...I would then feel crappy cause if they thought I was female, I sure looked like a pretty crappy one.
It took me a year of ft before I wore outfits that were more form fitting....I knew I had the figure for it but was too afraid to show it. My wardrobe staples now consist of skinny jeans, capris, nice tee's, other knit tops (mostly fitted) and flats and tennies. I do dress it up a bit on weekends or on a date, and love to wear dresses and skirts if I have the chance. I now dress much better for my figure, but it took me awhile....not only to learn but to have the nerve!
I think you will do fine....especialy if you don't overthink things like I do often
