That's good! Did you end up with a lot of different save files?
Since I just started a new file on Hard, I could probably just continue and overwrite that one until I beat the game on Hard (and I'll try to get collectibles I missed too while playing on Hard) while still keeping my other files intact.
Lol heck yeah! I probably have ~15 saves each on both PS3 and PS4 versions. 2x Platinum Trophies, baybeh!!