I have wished I was female since a very young age. However, I don't think I would transition at my age now.
As a teenager, I had a fairly androgynous looking face, so if the opportunity had arisen then, with hormone therapy I think I would have probably looked female.
But now it's a different story. I have to work really hard with makeup to look feminine and I'm not convinced that I'm always that successful.
And I would want natural breasts - not implants - so I think the odds of me being happy with the result of transitioning are low.
So I'll stick to what I do.