You're in luck - this is a Forum and there will be lots of folks trying to help you.
Were the videos stored on a mobile phone and, if so, does anyone else have access to it?
These videos were taken with my Samsung tablet and were just kept in my gallery, I'm afraid I may have deleted them unknowingly when I downloaded a game and needed more space . Thanks so much for trying to help me, I'm so ill over this, these videos were to be kept so my atty could listen to how physically abusive my husband has been to me
I can't raise your hopes because the game may have taken up the space. That said, go to the Play Store and download Root File Manager. It's a very small programme but it give you more clout than the built-in file manager. You don't need to root the tablet to use it.
When you get it running, scroll through the system folders and look for a folder named LOST.dir then open it. It's Android's equivalent to Windows Recycle Bin so with some luck, they may be there.