Hacked please help

My Microsoft account was hacked today. The attacker changed my sign-in alias to a random Outlook address, removed my phone number, added their own Authenticator app, and changed the recovery email. My original email now says the Microsoft account doesn’t exist. I have the Microsoft security emails proving the changes. I also have other forms of proof. If there is any moderator or anyone who can help me recover my account I had some important stuff on there I would like to get back. It wasn't this email but another one I made this so I can ask for help. When I tried to recover the email they changed it as provided in the screenshots down below. I tried to call support and fill out recovery stuff but since they changed the email for the account there is not much I can do.