The fact that she's terrible with parking is a big problem, she could not only damage someone's car but she could also hurt someone.
Maybe controversial but you should not be driving yet when you're extremely nervous if you have no urgent need for it and can afford to do more classes.
She has someone that can drive her around, is rich enough to get more classes before getting behind the wheel, she should chill for now and take her time.
The fact that she keeps bragging about passing the test when she was 17 kind of tells me all I need to hear. She was probably too arrogant to do refresher classes properly and admit that she's the same as someone that has never touched a car. Her license is just a technicality, not representative of her driving skills.