“Give up any hope of changing the past.” I’ve heard that phrase in a variety of forms over the years. It makes sense and it is true. Kind of.
I think it is significant that Jesus taught us to pray collectively, with plural pronouns: our Father, our daily bread, our trespasses. It helps us know that, at the very core of our being, despite all the differences, we are children of the same Father. Each of us has daily needs, every one of us broken by our own sins and all living in a fallen world.