Welcome to Susan's, Lost.

By saying you're scared to come out, I'm assuming that you haven't. Which leads to the question... how do you know you'll have to give up your job and your family and move?
*hugs*
What medication would anyone give you to supress you being who you really are? It's not, as far as I know, an imbalance in the brain which can be rectified with drugs... it's your entire sense of identity, the way you percieve the world, the way you feel you fit into the world and fit into your own body.
Aside from medication that would leave you permanently drooling in a corner, sitting in a pool of your own excrement, completely stripped of your entire sense of self... it's not something that can be selectively shut off. God knows I, and probably most people here have tried at some point in their life. It doesn't work.
I think the best thing to do, honey, is to see what happens with the therapy session before making any firm decisions about where to take your life. Talk all this through with the therapist, your worries and your fears, and see how you feel after that.
Baby steps, honey.

One at a time. Try not to look too far in the future at this point, and try to second guess yourself about what may or may not happen. Just take one thing at a time, and deal with one issue at a time. That will make the whole thing less daunting.
And you have a whole new family here now to talk about your worries with and get support from.