Life is about moving to the future, the past only exist for the lessons we learn ( like history of ancient life some things we don't do any more because it didn't work out so in this day we have other opportunities)

When we learned those lessons we know what to do for the next time.
Indeed is every day a new one and we should be happy that we can get every 24  hours a brand new start. Only we need to do is learn and move on and only look back when it is necessary.