Digging up my old game - HELP NEEDED

I built a game - or rather started to build a game - in 2015, and I want to reopen this work and maybe finish it.
Problem is, My computer from back then no longer works and I can’t find the file in my online drives.
Is it possible to somehow extract it from my old epic user?
I’m no longer sure how to enter it too, though. I just know it’s this user:
Is it somehow possible to access this account, and will it help me access the game files?