Hello ,
Besides you, no one has access to your safe folder password.
Try remembering your password & make attempts to find it. I would recommend you to make a note of passwords you have already tried. Your Safe Folder lock must be a pattern or pin as these are the two options.
At any point, if you reset your Safe Folder password, the data inside the safe folder will be permanently deleted and we might not be able to help you get your data back.
On the other hand, you may want to try other products of Google like photos or drive to find your data, if any backup was done by you.
Best of luck