Awkward and weird.
First, I was content with some changes. I loved my hair... I mean, my armpit hair and pubic hair - because all books on puberty said that is normal on female body too. I was kind of... proud. So at the age of 12-13, I started to wear some more girls' clothes than before. (I had worn boys' clothes we got from my mother's collegaues.)
Boat-neck tops, flare-leg jeans, sometimes a skirt... (Sadly, I had a retro appearance because I didn't have a clue what to wear but my mother and her aunt gave me clothes...) I didn't like my monthly cramps but it meant changes. "And changes mean that soon I'll turn to be an adult!" - I thought.
But soon everybody told me that I couldn't be a girl unless my moves are not girlish. In these clothes I was always sitting, standing, jumping... not a complete boy, but absolutely not as a girl should. And my classmates started to tell me (just for fun) that being hairy is not sexy. It's male-privilege. "You should shave it or hide it. You're not a girl. You even don't act like a girl."
I collected some photos of the last 6 years... I waited for my hair growing long then cut it back... over and over. I bought female clothes, kind of unisex ones... and a group spit on me on the street yelling "little ->-bleeped-<-!".
And I only wore large, one-coloured T-shirts because I could easily hide my hairy arms, armpits... The funny-sad thing is that I don't know my bra-size because my mother never come with me to buy one. Never. I used nothing. Yeah, they are small. I started to feel that I'm not a complete woman... neither body nor mind. Classmates called me "that/it" - others tried to make nicknames from my female name and sometimes "helped" me by telling me if my moves were boyish.
It was a nightmare. After all since then I've felt like a neutral-gendered teenage boy or what. Still puberty..?
I hate that all people want to understand only this or that. No other. Ffuu... binary system. I didn't fit in as a teenager. Neither recently... but much better wearing clothes that I want to.