Another person who used to feel cheated, but not anymore. You can't let anything stop you from achieving your dreams. You need to just go after those things that are so dear to us. Just remember the first part of the serenity prayer:
God grant me the serenity
to accept the things I cannot change;
courage to change the things I can;
and wisdom to know the difference.
I interpret that as: Change as many things to your favor as you can, accept those things you can't change (such as the inability to birth a child), and don't waste the time and energy trying to change things that are not possible to change. Sometimes for the things that can't be changed though, there are acceptable alternatives (such as adopting a child).
With my life, even after transition I still felt cheated from a number of things, but I have been achieving those things and experiences (or a suitable equivalent) and that list has become so small that I no longer feel cheated. For instance, I felt cheated that I was never able to be female during my teenage years, but with the musical I've been doing, I work with a lot of teenage girls now and even discuss makeup (mostly in regards to stage makeup, but it can apply to everyday makeup too). I feel like I am now living that lost part of my life. It was a suitable alternative that I inadvertently discovered, but which I found very fulfilling.
Heck, even last night *I* was giving a young GG (around age 18) some makeup pointers (which she wasn't aware of because she had a very naturally feminine face). Which I found to be very ironic, but she was trying to change her features to look more masculine for the part she was playing and so I was coming up with ideas (mostly by emulating the features that TS are trying to rid themselves of). I just told her I like to study people, so that's why I knew some the differences. But I'm a quick study, plus I had color experience with web design and learned a bunch off the internet and from other GGs, not to mention that I still experiment with makeup to figure out how to achieve certain looks.
So, even though I previously felt cheated out of a female childhood, I'm still able to achieve all the aspects of it that I felt i missed out on. Just remember, life has a way of giving you what you need in time. Sometimes you have to find those things yourself and sometimes you just need to wait for them to come to you.