Hi! It sounds like a pretty straightforward data loss case. Since you formatted the USB drive (and it was likely a quick format), there’s a good chance the files are still recoverable.
The best thing you can do now is stop using that USB stick completely (don’t copy anything to it, don’t try to fix it with random tools), just plug it into a computer and scan it right away with solid data recovery software like Disk Drill or PhotoRec (we have a list of many good options here). It should be able to bring most of your files back if nothing's been overwritten yet.
We also have a step-by-step guide that walks you through the whole process:
👉 https://www.handyrecovery.com/recover-data-from-a-formatted-usb-drive/
