I frequently have similar issues. I am masculine normally, my build and face. I have known something was up since around three and i have gone to many many sessions with my therapist about transitioning. I have had my letter for a year now and still have doubts. If you are worried about your looks you definitely should not. You look amazing. You aren't gifted with a receding hairline, and large pores like i do.
Some mornings i wake up with my mind in full blown woman mode, and sometimes i wake up wanting to throw out all of the stuff i have related to it. It sucks constantly flip flopping. The only thing that really stops me is being worried that i will not find someone that will accept me, a partner.
Now the passable part, i know i most likely wont pass, but that is more of a not caring factor for me. I want to do it for me, not random people walking down the street.
Good luck