Hello, I’m Virginia.
It sounds like the Hacker has changed the email address of the account & deleted yours, if so then the account is unrecoverable, but I’ll give you some suggestions.
Try recovering your account here:
Hacked:
Or:
Can’t sign in:
You can also try https://support.microsoft.com/home/contact & type Account Recovery in the box, then choose the Contact Support tab above & select Windows, then recovery from the drop-down menus.
I have further options if this doesn’t work.