Hi, I am Dhanam, Independent Advisor here to work with you on this issue.
I know this has been difficult for you, Rest assured, I'm going to do my best to help you.
Go to your start menu and search run. Alternatively, you can press the Windows button + R.
Type "%appdata%" then press OK.
Go into your .minecraft folder, then your saves folder, then (if you remember the name of your deleted world) copypaste the world folder into the same saves folder.
Go back into Minecraft and play your recovered Minecraft world.
- If that doesn't solve the problem, I suggest you contact Minecraft support and see if they can help you get your world back. To contact them please use the instructions below, please.
https://help.minecraft.net/hc/en-us/requests/ne...
This is a public user-to-user support forum. I'm a user like you helping other users. I do not work for Microsoft and cannot access any user accounts.
I hope this can help you. If this still can't solve your problem, just let me know and I'll do my best to try to help you.
Regards,
Dhanam,
Independent Advisor.