So, having doubts is normal. I don't know anything about you. I do know that wanting to live as a female isn't all there is to having GID. I think you should find a therapist and really get to the reason behind your feelings. I think that if you do have GID, and are transgendered that you have a little ways to go before you are ready to take major steps.
Not wanting to accept things in life that will make your life more difficult is pretty normal. I mean, stubbing your toe isn't going to last forever, but it sure sucks for about 10 minutes and I don't know anyone who wants to do that for fun. Not exactly the same, but it works for my point.
I know for me, I had cold feet before my FFS. It's scary, I'm not going to lie. I had doubts afterwards too. It was really hard to see past the horrible mirror and into the future. I can now say, without a doubt that I don't have any doubts. For me, it was the tough decisions that gave me doubts, but after I made them I was fine.
I think an important first step is to accept you for you. Being happy with yourself is really important, even if you don't really like what you see right now. See a therapist and get to the bottom of it. Just understand what going through all of this really means and involves, and what doing it really means for you.
Read through this as kind of a warning. It's kinda scary, but I think it's important for everyone to read before they move forward.
http://ai.eecs.umich.edu/people/conway/TS/Warning.html
