I'm going to try and explain this as calmly as possible. Mojang you need to fix worlds. I have lost two worlds because of this bug or something and i know all you are going  to respond with is make sure you backup your world but i would have to update it every time i play. I also shouldn't really have to worry about them being deleted. I have never been able to defeat the ender dragon because when i get close to the world is gone. and i have tried everything to try and get worlds back but of course i have a computer that doesn't have that accessibility. And i know you probably can't get them back. I don't even want to do survival anymore because it is going to be a waste of time when i get so much stuff and then have it disappear never to be seen again. I am so close to deleting my favorite game and never ever playing it again. And you might be laughing and think oh there is a stupid 11 year old ranting on about stuff that could easily have been prevented. I am not a karen i have just had it up to the sky with this stupid accidental deletion.  You have no idea how long it took me to do everything on that world.Mojang you need to fix your crap and get it in order before i smash my cheap ass computer. Get back to me as soon as you can. and i can't show you a screenshot 1. because i don't know how and 2. i doubt it will even help.