The instructions to log in to the Azure resources page are referring to the Azure portal at https://portal.azure.com/, not the shell that you have opened on the page.
If you are receiving an error message that you don’t have an account, you may need to create an Azure account to access the resources page. You can create an Azure account for free by following these instructions at https://azure.microsoft.com/en-us/free/
If you are having trouble navigating back to the learning page, you can try going back to the main Azure Fundamentals training page and finding the module you were working on.
When you logged into Azure Portal you will first need to create a subscription, after creating a subscription you can then click on the create resource at the homepage of the Azure portal... lemme know if this help.