Please correct my punctuation

Ben Underwood inspired the world with his talent, similarly, Rowling inspired the world, but with her books. Their success stories are not fairy tales, but rather they include pain and so many problems, and this is the most effective part of their stories for people. The problems that they faced and their attitudes influenced people all over the world.

On the other hand, they are different from each other. Rowling had mental health problems like depression, and she thought about hurting herself while Underwood had a physical health problem. He had cancer, and after the operation, he couldn't see with his eyes throughout his life, however, he could see with his ears like dolphins.

They had different stories, but their common grounds were their determination to live and for their dreams.