I'm wondering if your parents might prefer to be told sooner rather than later, or rather than learning your news from someone else. You know your parents, so this is just a suggestion on my part.
Last night my husband and I were watching an episode of Britain's Got Talent. On it was a man who had transitioned from being a woman. It was interesting to have a brief snippet of his life shared for all to see and witness. Hopefully publicity like that helps people thinking of and wanting to transition.
All the best with all the appointments you have organised to help you.
I had a little chuckle about you signing your new name, I did that with my husband's surname before we were married to see how it would look with my Christian name.
Would you like to share what some of your fears are? This is a safe place to write what you are feeling.
Have you had a look at some of the threads in the sexuality and gender section? You might find other people who have a similar experience to you.
Wishing you well with your journey!
Cheers for now from Dools