The problem with Valentina is that the words she chooses, she has a tendency to come across with overly inflated claims. She doesnt practice 12 - 14 hours every single day.
When asked if she had other interests, and what she does for fun, she said she had no other interests, and piano was her fun. In the same interview, she talks about her love of chess, and following that as a sport.
In another interview, she said she took care of her child during the day, and then, she would practice at night I think between 12:00 - 3:30, which makes sense. She says she does the normal things during the day, cooking dinner, etc.
I dont think she practices 12 - 14 hours MOST days of the week. There are occassions when she probably does practice 12 hours, but she is a professional concert pianist. So there are other things to attend to, like her family, her schedule for traveling, talkign to teachers, etc..
She also talks about her "perfect" memory, and how "technique is easy, so I have to make it look hard" WHAT!??