Let's say you can travel back into your past any time you want, but the problem is that you can never time travel into the future, or "back to the future".
So you can jump back 24 hours and redo it as many times as you want, adding more and more memories. You can go further back if you want. When you die, you die for good.
My question is this: How many lifetimes of memories would it take to make you say "fuck it, I'm just gonna let this shit play out already"?