I’m so glad you wrote to me. I can understand you're nervous, but you will need to see a therapist who specializes in transgender issues in order to receive a diagnosis and begin hormone therapy, if appropriate. There are also lots of supportive groups out there which can provide you with information and support as you transition from your biological sex to the female gender you feel yourself to be.
Here's some information for you: First off, we now know that our gender identity is essentially set at around age 2, right about the time we begin talking. Thus, most transgendered people have known their genders for quite a long time. And gender has nothing to do with sexuality, although many people erroneously link the two. Our gender identity isn’t dependent on the sex of our desired partner, but is rather our profound sense of who we are—either masculine or feminine.
As far as what’s next for you, there are several websites offering help. Most of these sites have a section on the steps of gender reassignment.
The most important thing is for you to reach out and connect with others so you can build friendships and relationships during your transition period. Be proud of who you are, and don’t let anyone tell you you’re not OK! Best of luck to you. Dr. J