My genetic sex has left numerous marks on me. It is very difficult to forget it, and often a source of debilitating depression. I am very unhappy with my appearance, and even when I do fix my appearance with the aid of completely unnatural surgery, I will never be able to reproduce as a woman... and my genitals can only be unnaturally remade into a close approximation of what a biological female has.
Add to this the simple fact that the experience of being male for my entire childhood deprives me of countless potential positive experiences, while at the same time being a central factor in countless negative ones. Because of this, I will never be able to take my gender for granted like the 99.95% do. At best, there will always be a small barrier between me and cis men and women... and at worst, I may never be able to socialize properly. This is up to probability to decide at this point in my life.
The sum of the above leaves scars, as well. These things have made me a bit jaded, and grim; a little dark, and my hope is a shadow of what it once was. Because of my physical characteristics, and the necessity of a journey to overcome them, my self-esteem is likely to be permanently damages, and because of the experiences I have and the ones I don't... I will never know in certainty whether I really am female, or just a sad boy that wished to be female.
... So, yes. I do think about it from time to time.
Me and my crushed spirit.