You need professional help. Try to google it

If you have backed them up, just restore from the backcp files. If not, stop using your phone to prevent the new data overwrite the deleted videos. Then use data recovery program to extract them from the internal storage.

Hi, Thanks for sharing these larger files with us.

I deleted some videos by mistake. Due to the large size of these files, they did not end up in the trash. Do I have a chance to restore them? Now I consider the Video Recovery program as a recovery tool.