Crayzbatz

Thank you so much NaperVic.

Hello everyone, Sorry if I posted this question in the wrong location but I am looking for a story that I read about 2 years ago. I have tried to find it on GA but I know that I am overlooking it. It was about college student signed up for a science experiment to go back in time. The protagonist goes back in time but ends up in his childhood body and has to relive his past life (also goes through world war 3). I think there was two other books also. Thank you for your help.