Man this is a tough one for me. I'm with you, I'd definitely keep that do-over and start a new life.

Part of me would want to keep the memories to avoid the pitfalls like you stated. And then at the same time part of me thinks I would be so haunted by the past that I wouldn't be able to fully appreciate the do-over.

Of course without the memories and lessons learned, I wouldn't be the same person I am now. And being a different person may not necessarily mean better.