Brother accidentally clicked new game

I just lost 15 hours of gameplay because my dumbass brother clicked on new game, is there anyway I can get my old save file back??

Isnt there a few different new game slots i thought? U should be able to continue your game in your game save slot i think. I hope so anyway haha.

Isnt there anyway I can go into the game files and retrieve a deleted save?

Probably not because your brother overwrote it.