Replay by Ken Grimwood is a novel worth reading. I wonder whether that's where Stephen King got his idea for 22/11/63. Yes, it's about travelling back in time, replaying bits of your life. Personally, I preferred King's version (I could actually see the railway lines and taste the root beer), but I'm glad I read Replay.
Here's what the Wikipedia says about it: "Replay is the account of 43-year-old radio journalist Jeff Winston, who dies of a heart attack in 1988 and awakens back in 1963 in his 18-year-old body as a student at Atlanta's Emory University. He then begins to relive his life with intact memories of the next 25 years, until, despite his best efforts at cardiac health, he dies of a heart attack, again, in 1988. He immediately returns to 1963, but several hours later than the last "replay". This happens repeatedly with different events in each cycle, each time beginning from increasingly later dates (first days, then weeks, then years, then ultimately decades). Jeff soon realizes that he cannot prevent his death in 1988, but he can change the events that occur before it, both for him, and for others."