Another long-shot technique in Windows is to see if there's a Shadow Copy of your file (copy from a restore point). Right-click on the file, choose Properties from the list - in the Properties box, choose the Previous Versions tab. Hopefully (in theory…) there'll be a useable previous version to choose from. These instructions are for Vista. If the tab is not there, do a search for instructions for this feature on your operating system.
But in case nothing of resources that advise specialists can't assist you, choose one of the following ways...
https://helpx.adobe.com/photoshop/kb/file-recovery-photoshop.html
https://download.cnet.com/Recuva/3000-2242_4-10753287.html
https://onlinefilerepair.com/en/photoshop-repair-online.html
