HELP!! I just accidently overwritten my main game save file, what should I do?

I just did the same thing with my save on ps4 and after lots of panicking I found a kinda fix. This is just for playstation and you need to have ps plus. I came across this video which shows you how to restore online backup saves. My most recent was an auto save from 4 days ago so I did loose some progress but it wasn't nearly as devastating as losing my whole save and months of playing. Hopefully other people will find this helpful, good luck guys! https://www.youtube.com/watch?v=GdQ0Oj3X-Us&feature=youtu.be