The problem is not about why we would not want to relive our life, the problem is we can't. You can't even relive yesterday, where is the question of reliving your life? Life is a journey, like a river that flows, once the river flows it can never come back to the point where it was. So is life, you can't bring back yesterday that is gone. We must realize that life is about the moment, only this moment. There is no question of reliving life, whether we want to or don't want to so why think about it? Why not live life moment by moment, in bliss and peace, and the realization of who we are and why we are here.