No worries! There are backups
Backup path: %USERPROFILE%\AppData\LocalLow\Placeholder Gameworks\Death and Taxes\Saves
You can choose an earlier day save, rename it to Save.RIP and then overwrite the Save.RIP (or delete the old one beforehand) in the path %USERPROFILE%\AppData\LocalLow\Placeholder Gameworks\Death and Taxes\Saves
To open the folder conveniently you can just copy and paste that path into your Run app (Windows Key + R shortcut or type Run into the Windows search bar).
Let me know if this helps :)