Hi,
Another one who agrees with Jen about meeting other T1s if possible.
I don't know if this would work with your daughter. I have a 5 year old, so not quite as old as you daughter, but I have found that, if I treat her "like a grown up" she usually responds by acting like a grown up. Obviously, I am no way suggesting you actually do "treat her like an adult" but perhaps, giving the illusion of having a grown up chat would help? I am a great believer in treating someone like a child, and they will act like a child (and this applies in all walks of life) so, as you are wanting her to act in a more mature manner, perhaps trying to engage with her, like youwould an adult might help? Obviously, along with this, has tobe the reassurance that she is acting completely normally, and not doing anything wrong, but as she gets older, and she starts being more independent...(going on a ballet trip etc?) you both need to think about what you BOTH can do, to work towards that?