The more I have thought about myself and my gender, the more I noticed that the only times I was ever comfortable being male was when I was perceived by others as being male. The reality is, that if I lived in a vacuum, or in a totally accepting society, I would be girl, girl, girl.
Why did the perception of others matter so much? Well I was subjected to a lifetime of rather extreme psychological abuse by my father. My father, was a weak, insecure, disagreeable man who fought by manipulation rather than confrontation. He lived by his own fears, and constantly used my fears to manipulate me.
I was constantly criticized, and constantly told how people would react or how they would treat me if I did things a certain way. Guilt, shame and fear were his weapons, and he used them with aplomb. Every time I got bullied in school, I was always to blame and he was always right.
Only far into adulthood did I realize that he had had me constantly performing for an almost entirely imaginary audience. My father never had any actual friends, but it was not until he had a severe stroke and no one called to see how he was doing that I realized that -- that he never socialized with anyone except his own relatives, and even they did not pay much attention after he had the stroke.
The people who really matter to me will never make me perform to any kind of standard. They will let me be me. And, freed of the psychological shackles my father placed on my soul, I am a girl.
So if you are having doubts about your gender, ask yourself what is really the source of those doubts. Take a look around you, and ask yourself how much of your doubts are connected with how you are perceived by others, and then ask if those people's opinions really matter.