If so many worlds got corrupted, you need to look at your machine. There's something on it causing these issues. It isn't the game. Once or twice, I'm sure game-related issues might have caused it for you, but five distinct times? That would have to mean it's a common issue that effects multiple people, but it simply doesn't. I would definitely look at your computer for it is, 99.9%, the root cause of your problems.
Unless you were playing with mods, and didn't care to maintain them. That isn't on the game. That's on you.