Glad to hear she (and you!) joined the game! Welcome!
Whether you are looking for playing advice, equipment recommendations, or a better understanding of the rules, this place should be a great resource for you!
The most valuable piece of advice: take all advice from an Internet forum with a grain of salt.
I think mine was 8 when I joined (she's almost 13 now). I credit the regular posters here with a LOT of things we've done right on our journey (and fault none of them for the things we've done wrong, lol). There's a lot of knowledge here for sure. Welcome