You didn’t ask, you stated she missed her childhood.
Your other questions are answered in the article. She says over and over how pleased and thankful she is, and more than one person cites her insatiable desire to learn. The world is full of people. Some of them are crazy academics. I’m not so threatened by this story that I need her to be unhappy.
Nor am I going to say that a kid who used their childhood to learn “missed out.” A kid who blew it all on Minecraft missed out on a lot as well if we’re going to be honest.