Hey there, Jeff Allo
You can reach out to your university and ask them to remove your account from Azure. They would be able to do this through the Microsoft Entra ID service through the Azure portal.
If you are unable to do this, you can create a new tenant using a personal Microsoft account by signing into another Microsoft account through the Azure portal here: https://azure.microsoft.com
Then click onto 'Get started with Azure'
This should take you through the process of signing up for Azure. Once you have signed up, please add your other account through the Entra ID portal here: https://portal.azure.com/#blade/Microsoft_AAD_IAM/ActiveDirectoryMenuBlade
You will want to click onto Users and add user. You can complete the user creation form. You will then be able to click onto the user and add permissions to the user.
Hope this helps,
Nathan