I've realized something was wrong as early as about 9 or 10 years old, but couldn't quite realize what it was. I always preferred playing with the girls over the boys. Yet, I liked to do things that were both boyish and girlish; playing with hot rod toy cars and Nintendo games along with dolls, watching cartoons of all sorts regardless of what gender the main character was, playing sports outside as well as playing house, etc.
Right around when I hit puberty, around age 12/13, I started to have conflicting feelings take place, having dreams about being a girl, being uncomfortable and torn between my feelings, and trying as hard as I possibly could to squash them, telling myself "it'll go away if I try hard enough".
For a long time, periods of time went by where I'd just forget about it, presenting as male as possible, and finding ways to enjoy myself. Thankfully, I've always been level-headed either way. I never got into drugs, fell into suicidal depression, or found myself getting into deep legal troubles.
Yet this year, after many of these feelings and sensations strongly resurfaced, I finally told myself it's time to accept and embrace who I truly am.
Even though I haven't been, and can't be, aggressively out and about for practical reasons, all I know is that for the last 6 months, I've been much happier and more comfortable with myself.