I'm still trying to get my appointment, I was terrified the first time and the second time I called, terrified taking to her when she called back, terrified to go to the transgender support group she invited me to, and terrified on my third call asking for an appointment (still waiting for a call back). I have no doubt in my mind that I'll be happier on HRT with a therapist guiding a transition for me, that isn't to say I don't have doubts though, I'm full of doubts, but I actually can't even imagine being as miserable of a girl as I am a man.
There's only one good reason to transition, you internally identify with the opposite gender.
There's seemingly a million reasons not to transition. Work, friends, family, society, infertility being the worst ones, but what is having any of those things if you can't be yourself?