Thank you for following up on this!
Since you can't access any of your personal tenants, and you don't have any other users that can add additional authentication methods (phone/email) for you. I'd recommend reaching out to our Support Team through an Azure Support Request, if you have this capability within your Organization's tenant, or you can reach out using the customer service number for your country/region.
For future reference, I'd also recommend creating and managing an emergency access account in Azure AD, this will help prevent being accidentally locked out of your Azure Active Directory (Azure AD) organization because you can't sign in or activate another user's account as an administrator.
If you have any other questions, please let me know.
Thank you for your time and patience throughout this issue.