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Was interesting to find out that I am trans last week. I won't get to do shit about it till I move out for university in a year(I will be 19) but I have a supportive group of friends so coming out to them wasn't too bad. Plan is to start DIY and also start with a therapist and eventually move to offical channels.
I mean, some people figure it out before puberty, but it's faster than me at 40! And there are many people transitioning much later still. Enjoy being young and pretty!