Welcome to the Potterworld. I grew up reading the books, and Harry deffinitely grew up with me. Definitely the first books are quite different. By the time I finished the last one I was a completely different person, and so was Harry. But in a way, the books definitely raised me. The next two books are even darker. The Half-Blood Prince, although maybe my least favorite, shows you that indeed, Harry is not a kid anymore. And the last one, my super favorite, is just pure gold. I hope you enjoy the rest of the journey.