Very interesting subject, I think for some trans girls they get so caught up in achieving these insane ideals of beauty like every CIS girl or to be Passable you need to look like a Supermodel. I think on a certain level you need to accept that you're different, you're unique I think we are doing something really courageous so outside the box it would be silly to try leave the box of assigned sex to jump into the box of trying to be passable.
I think the good question to ask is what do I need not to be happy what I want cause the answer will differ greatly.
It's tough and it's a daily struggle but it's always good to remember that.