You need to contact the administrator of your Azure subscription and ask them to assign your account a role like Contributor or "Owner on the subscription scope so you have permission to create resource groups. As your current role assignment does not include this permission at the level where you are trying to create the resource group.
See: https://learn.microsoft.com/en-us/azure/role-based-access-control/built-in-roles
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Regards,
Abiola