P. G. Wodehouse 
The Little Warrior 

In many ways, Jill Mariner has it made: born into a family with money and blessed with good looks and smarts, she's looking forward to a lifetime of love and leisure as the book opens. But she soon finds out that life has a funny way of upending one's expectations. When everything changes in an instant, Jill finds herself penniless and looking for love. Will she learn how to make her way in the world? Read The Little Warrior to find out.