Here's a tip for our youngest gifted ones:
Watch out what she overhears, as she will likely remember what you don't want her to. On a hunch I banned TV and radio news, and the few times DH 'cheated' DS was filled with questions and worries and fears, well beyond his years... DH was usually pretty good because he understood the need, but his parents, bless them, just couldn't or wouldn't get the hang of it. I didn't want to interfere with his relationship with them, so I requested, and repeated myself, but mostly put up with it, and had to answer lots of questions later.
For DS the 'pet fear' is Global Warming. Whatever they told him in 1st grade made much more of an impression than they could have anticipated. It took me two years to figure it out.
Welcome,
Grinity