Rachel, best wishes for the second part of your GCS tomorrow, and finally being able to get your breast augmentation scheduled.
I read this entire thread in the past few days and found it incredible. Your sincere thoughts and experiences have already given strength to many others, and will in the future.
On March 27, 2017 you said: "I will never pass and I will always look trans. I knew this from the start."
Even if you had been born Cisgender there are others who will jump to conclusions for their own convenience based on something – your ethnic background, the brand of car you drive, horoscope sign, whatever.
As you discover, grow and achieve things you previously assumed were impossible, I'll suggest the most important definition of passing is your own. You might be closer than you realize.
All the best for tomorrow.
Kendra