I've never thought that I have any kind of separate personas, I'm just me. Sure, I've changed and my behaviour has changed after I've become more comfortable with myself and my surroundings, but that happens with life anyway. There was a big difference in who I was when I was a small kid versus who I was when I was a young person even though I was still under the false impression that I was male. I don't see this any different, really.
I've managed to adopt the attitude where even if I do sometimes question myself with "is this thing I'm doing female?", I just think "well, I'm a woman so clearly this thing I'm doing is suitable for females". It took a long time to get to that point, but it's empowering as all hell.