You cannot rewrite what happened, but you still edit what it produces next.

The event is fixed and its consequences are not. What happened next is still being written, and much of that is shaped by choices made afterward: what you tell yourself, what you do, what you build. The past sets the material rather than the outcome.

Instead of arguing with what occurred, look at what it is currently producing in your life and ask which of those effects you can alter. Work on one. You are not rewriting history; you are working on its continuation.