Corrupted World

Minecraft world that I have been working on for 5 years suddenly will not work. While playing, I received this message "You are out of storage space and Minecraft is unable to save your progress! Minecraft will return you to the main menu to clear up storage space." I double checked my storage and I had space, so I'm not sure what's happening. The world image is greyed out and when I tried to open it, the world began syncing. Syncing did not work. I exited the game and relaunched it and now the world name shows random letters and symbols and the last saved date is 12/31/1969. 

Here's what I attempted:

I uninstalled and reinstalled the game. I also cleared local data and was able to get an old save from 2022, but this isn't what I wanted. Minecraft was displaying both the corrupted file and the saved file from 2022. I saved the old save to a realm (just in case) and attempted to uninstall and reinstall again. It still only lets me play the 2022 save file and not the most recent save file. I'm not sure what to do and really want this file back. 

I also tried using this video: https://youtu.be/3yZpTyzEyLU 

This didn't work because the Minecraft starter collection is no longer in the store and when I tried just normally doing the steps without the starter pack, the game kept forcing me to update. I couldn't use an older version to access the cloud storage and pull out the file. 

Any help would be greatly appreciate 🙂