So i was trying to join a server but it was the wrong version, so i closed minecraft for a second. When i opened it, i had to login again (weird, cause normally its only when i change wifi locations) then, it had none of my versions saved, and also forge did not show up as an option either. It took 2 minutes to download 1.12.2 again. When i got in, none of my servers were saved, but more importantly, none of my worlds were there. I spent at least 30 hours one one of them for youtube, and It's really important to me. I looked in the save folder and they wern't there. I made no backup of it ;;;(( Is there anything I can do??? please help