Ahhh Gracie, hugs. Your mum sounds like she's handling it kinda similarly to mine. She didn't like me being TS, thought it would reflect badly on her, and just wasn't comfortable with it or with people finding out. But she still loved me and didn't want to lose me, so she tried to be supportive even if not all the time.
But its that second part that is really important, she didn't want to loose our relationship any more than i did. And she didn't want her or me to have to face those situations that she was insecure about, but she was able to handle them when forced to face them. I don't mean that you should just ignore how she's feeling about who you are, or rush her to come to terms with it. But if theres insecurities that she doesn't want to face, then a little nudge from you perhaps would help?
I think your really sweet giving her so much time to adjust, but from what you've said, your mum still loves you and isn't about to disown you. Maybe you could push the boundaries a bit? Let her know that you respect that she's feeling insecure, but that theres limits as to how boyish you're prepared to be for her.
My mum still asks me to not dress too femininely around relatives who have only just found out, but after seeing that all her worries about what could happen, didn't happen, she's been a lot more supportive. And she doesn't ask me to do anything that she knows makes me feel very uncomfortable any more.
And I really love your avator, i'm so jealous!
hugs
jenny x x