Is there a film like this?

Is there a film were

A girl wins someone money but doesn't tell anyone., then one day she gets up really early in the morning and leaves and just leaves a note saying she doesn't know when she'll be back - she leaves a box under her baby brothers cot with £1000 in side it. She's about 18-19.

So she leaves and jumps on a train with only a couple of tops and trousers/shorts with her.. She ends up going to new Zealand and works there for a year or so without contacting anyone she once knew before she left, she doesn't use the money she won., she still likes to spend her earnings and keep the money for when she needs to get away again. The girl leaves new Zealand and travels around the world teaching the poor art and English., she enjoys to live alone and to live free without anyone really knowing who she is. She changes her name everywhere she goes . She keeps a diary and takes photos so she'll never forget the people she's met and helped. After 7 years she returns back home , with nothing in her bag other than her passport and her purse with very little in .. But her bank was still full. She lived in her hometown for a couple of months before returning back to her family .

As I think that'd be a really great film