My stories aren't about problems. I prefer the term challenges. Even then, my books are not about challenges. They're about characters who have challenges. There's a subtle difference.
Tell Clancy, from Trinity Street, has an enormous challenge, but her first one in the book is understated. Tell, who feels herself to be an ordinary girl, is best friends with Camena de Courcy, an orphan who lives with her elder sister. Camena is a certified genius, but her social development lags well behind her intelligence. Tell is challenged by her need to protect Camena while interpreting the world for her friend, and also interpreting Camena for the world. It's a challenge that leaves Tell precious little time to think of her own problems.