I've been on T for a year and two months now. Up until I started my new regime, I noticed absolutely zero in the fat deposition department.
And yeah, I hear ya about the passing. I do pass in real life, but not on the phone. It's such a downer. But know that you can control your shape. To a certain extent, at least. Bones won't change, but it's fat that mostly matters. And the fact you're already starting to make changes means you're in control, and will manage to get rid of that damnable female shape. In a way, it feels good to have a brother who's starting to do the same.