It took me a long time to gather up the bravery to post this because it can be interpreted badly by some, perhaps wishy-washy.
To start, I constantly was reminded how attractive people thought I was as a male. They would drone on and on about it being a waste, predominantly female friends, losing my toned body and specific anatomy. It sounds like I am tooting my horn but it was really restrictive and agonizing process. Like I was being warned not to go through with it or I'd destroy my future. I'd think, "If I take the steps I want to become female will I be happy being a (possibly) not-so-cute girl and am I going to be fine with it being this way?" Incredibly vain as it is, it was a really tough to work through. Despite a childhood of gender variance and self-abuse, it still hadn't sunken in for me clearly. Despite visiting a gender specialist regularly, not even then! Yet I knew that I had the feeling that my gender wasn't congruent with my physical body.
Basically, I tried my best to convince myself that I was and would be far more attractive and successful and desirable as a male than if I were to be a female. Incredibly. Freakin'. Vain. Young people, sigh.
This went on and off through the years, resulting in stretches of girlmode and boymode, until I found some sort of safe and temporary in-between. Stagnant I sat like this for what seemed like eons before I finally broke down and basically said, "To hell with it. The worst mistake anyone can make is being too afraid to make one." I stopped caring and feeling scared about possibly not looking passably female and just pushed forward. And that's worked for me then and is working for me now. Some days I dress/present as feminine female, others as a boyish tomboy (been asked if I was a lesbian before, gah!) I really wish I could explain this properly, but I am not exactly clever.
On an odd and random note, my variance has had the side effect of me becoming almost exclusively attracted to other transfolk. Male, female, or any combination. I think there is a label for this, but I really like to avoid them because you can't sum a person up with restrictive little categories. To me I just feel more attached and contiguous with people that share this similar struggle, relate to them more, and appreciate them more. That isn't to say I think less of any cisgendered person!
Being comfortable in my own skin has been so very, very hard to attain and it's something that I still work on daily.