Before I Fall
End of Book
This whole story is about a popular high school girl named Sam who dies in a car crash and relives the last day of her life 7 times. It doesn't remind me of any book I've ever read, but it reminds me of the movie Groundhog Day with Bill Murray. I've never actually seen it, but I know it's about a guy who gets stuck in a time loop living the same day over and over again, like Sam in the book. Both stories even take place in February. Eventually the main character of Groundhog Day (whose name is Phil, I think) starts to change his life and help people, which breaks the loop. The same thing happens to Sam. She starts to notice that other people exist and helps save a suicidal girl, which breaks her time loop and allows her to die. The only difference is that Groundhog day is comedy and the book is mostly serious, even though it has some funny parts.