Managing personal Outlook.com account settings, security, and privacy
Hello, thank you for reaching out to Microsoft Q&A.
I'm sorry you're experiencing this problem. I understand how important recovering your account is to you.
If you tried to sign in and received a message that your account is blocked, first try the Microsoft account sign-in helper tool here, which will tell you what you need to do to recover your account.
Microsoft account sign-in helper
If you are still having issues, you can then try the Account recovery form here to recover your account:-
Remember to use a familiar device from which you've frequently accessed your Microsoft account, as well as a familiar location. Microsoft will review your responses and respond within 24 hours. If you are verified, instructions on how to log back into your account will be sent to you, and if you are not verified, you will need to submit the Account Recovery form again. You can do this up to 2 times every 24 hours.
Note -
Microsoft takes account security very seriously, which is why the Account Recovery process is fully an automated process with no human influence. Even Microsoft Support cannot directly grant you access to your account; they will direct you back to the Account Recovery pages linked above. This is to help ensure that your personal information remains private and is not shared with anyone.