Hi @Keira Riley,
Good day! Thank you for reaching out to Microsoft Q&A forum and sharing your experience.
I’m very sorry for the inconvenience you’ve experienced, based on the details you shared.
I would recommend you contact your school account's Admin to reset your MFA settings through the Microsoft Entra Admin Center. Ask your administrator to follow these steps:
Revoke MFA sessions and require re-register in the Microsoft Entra admin center
For step-by-step details, see the official Microsoft documentation: Manage authentication methods for Microsoft Entra multi-factor authentication - Microsoft Entra ID | Microsoft Learn
If you’re unsure who the Global Admin is within your school account's organization, you can find guidance on locating them here: How do I find my Microsoft 365 admin? - Microsoft Support
We appreciate your patience and are here to help. Looking forward to your response.
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