Download the following program, which is reputable and free, and see if it will scan your drive https://www.cleverfiles.com/partition-recovery.html I had a near death experience today! I somehow found I'd deleted my data partition which had some important stuff I hadn't transferred to my backup drive. I downloaded the data recovery tool and ran it. it found the the lost data partition and enabled me to see the files which I selected and recovered to my backup drive...PHEW! :D
It's time for another reminder about the importance of backup.