So it does matter, but I didn't mind, and because of mind over matter, it was all sorted just fine.
I must knew something tomorrow that I didn't know today, or I won't have gone back to meet my death at all. I've got a brilliant plan to break the loop, so if time and space comes to an end tomorrow, go back to today and tell me it didn't work. That way, I'll know whether it'll work before I try it, so I can't fail. I have a suspicion that this'll start a new loop, but at least I won't die every time that one cycles.
Chew on THAT, causality!