Deep breaths! Since it was a "quick" format, your data is almost certainly still there.
First thing: Stop using that drive immediately. Don't write a single byte to it, as you don't want to overwrite the data that is currently "invisible."
A "format fs=ntfs quick" only wipes the file index (the MFT). The actual data blocks remain untouched until new files take their place.
You can try Windows File Recovery. This is Microsoft's official command-line tool (find it in the MS Store). Use the "/extensive" mode to scan for files.
Here's a Crucial Tip: Always recover the files to a different physical drive to avoid overwriting your own data during the process.
It's a terrifying mistake, but as long as you stop writing to the disk now, you should be able to get nearly everything back. Good luck!
