Hello, thank you for reaching out to Microsoft Q&A.
When was the last time you were able to sign in with your Microsoft account successfully?
Note -
"If you haven't signed in with your account for more than 2 years, you cannot use the Account Recovery Form here to recover your account. "
Microsoft takes account security very seriously, that's why Account Recovery is an automated process with no human influence. If you don't have the correct information, you may not be able to get through account verification using the Recovery Form. You'll need to keep trying until you're verified by Microsoft.
It's important to note that Microsoft Support will not be able to grant you access to your account, you will be sent back to the Account Recovery pages.
If your Microsoft account recovery request was not granted or was unsuccessful, please click the attached link for more information: