I don't care for my name because I have rejected the Catholic religion of my father, an Irishman, and Mary is considered a Catholic name where I came from.
Perhaps you'd do better to stop thinking of it as a Catholic name. They don't have dibs on it, no matter what they say. Catholic isn't a race or nationality. Even if you want to relate it to the Virgin Mary, Catholics don't have dibs on her either! And she was Jewish anyway.
Miriam was the sister of Moses. So now you can start thinking of yourself as the sister of the man who freed the Hebrews. :-)
As for me, I am of course King Arthur's half sister. :-)
(Sorry, I guard my real name on the internet with my life.)