I never cared very much about passing, but I also know that I'm in a minority. But save for a couple of times here and there I never thought much about it. I always wanted to pass, I think everyone wants that. But I never cares much about passing or what people thougth of me, I was and continue to be a amazing person, if they don't see that then they are not people I want anything to do with.
I've had periods where I've tried to pass better, by trying to think about how I walk, how I talk, observing and then trying to recreate in myself. But I have mostly given up on those mainly because I don't have time. I got work to sort out, I got friends I want to do things with and talk to, I got my girlfriend whom I wish I was able to spend more time with, I got my parents and my younger syblings that are still confused about the whole situation, I got doctor appointments, I need to go out and buy food and make sure I eat everyday.
I'm currently in a state of confustion, because I apparently pass, and very well at that. Able to have long conversations face to face with people and they not having the tiniest of suspition. I don't know how or why, but I'm now having to get used to people seeing me as the (slightly silly) girl I am.
But like I said earlier, I'm in a minority that I never cared much about passing and never had any anxiety or anything about it. But just keep following your heart and one day, a day that may come sooner then you think, you'll be passing no problem.