I didn't even know changing gender was a thing...
When I was younger all I knew was that there were men who dressed as women for whatever reason, I didn't even understand my feelings, so I started doing some research and found that some women were men in the past, it started making noise in my head, I was very closeminded in the past, so when I thought about transgender I usually thought about some ugly point inbetween men and women, because where I live that is a very strong stereotype, what made me decide to do it was forums like this one with so many pretty people who successfully changed their gender and most importantly, continued with their lives, it wasn't an end all situation.
some friends did know some transgender girls and I was kinda sad because one of the girls they showed me in pictures was a bomb, incredibly beautiful and working as a model (me being more of a "girl next door" it hurt my selfsteem).
so, I'm the only transgender in the family and in my circle of friends, in fact the first transgender girl I ever saw other than myself was a girl in the subway when I was in mexico city, the poor girl matched all the stereotypes of my country, but it was good knowing that I'm not a rare breed of people, I wish there were other trans people near me, even if I don't look trans myself that much