Yes, she's taking on challenges that most of us will never know, and perhaps she's wound up tight. It's something her parents must manage to keep her well grounded.
As for Jasmin, that's not accurate, although it could possibly be in lesser European events. Jasmin's first win at the European Championships came at the age of 19. She also won at the World Games at 19. She had dabbled in WPBA play earlier, but she was not a top 10 player on the WPBA until she was about 20, when she won the BCA Open in Las Vegas.
The only players in the history of women's pro pool that enjoyed great success at Savannah's age were Jean Balukas and Loree Jon Jones, both of whom had won a world championship by the age of 15.
Let's give Savannah a little time. By the time she's 18, however, we'll already know whether she'll ever be counted among the greats. The true greats nearly always show it when they are 18 or less.