Nia is for protecting and cherishing
If you're that desperate (and invested), as Runey said, check your autosaves
I am chill actually - there was no negativity in my comment
Yours however sounded quite desperate, hence why I said so
There is one last method via means of a patron cheat, if you're up for that, but it's not optimal, hence why I suggested saves as Runey did
You could always roll back or just start a new save if you're deleting backups as you go