The doubt thing is a real pain; its very annoying because you'll be feeling great, and normal, and just plain fem, and you wonder, why do I have to work all these complications, I'm fine now, just as I am! Why do I have to take those meds, or talk to that therapist, or get blood drawn for the dozen'th time this year... It can be really hard to convince yourself that you feel fine now only because you are doing and will continue to do those extra things that no one else around you has to do.
I'm a hard head, so it took me forever, but I've finally accepted that I can't just follow the dots carefully laid out for me by parents and peers, to the perfect male head of household, career, family, house, car, and boat thing, no picket fences though. There is a darkness at the end of that path that will not be denied and will have to be reckoned with sooner or later. You really can come to the end of that path and realize that you never lived your own life.