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I Understand you're trying to create a folder within an Azure Storage container, but Azure Blob Storage doesn't have a traditional folder hierarchy like a typical file system. Instead, it uses a flat structure where you can simulate folders by using a naming convention with delimiters, such as forward slashes (/).
Since you have $200 in credits, you should be able to use these features without any issues.
I suggest how you can create a "folder" in your Azure Storage container:
Upload a File with a Folder Path, when you upload a file, you can specify a path that includes the folder structure. For example, if you upload a file named example.txt and specify the path as folder1/subfolder1/example.txt, it will create the appearance of folders folder1 and subfolder.
You can use Azure Storage Explorer, a free tool from Microsoft, to manage your Azure Storage resources. It allows you to create folders directly by specifying the path when uploading files.
In the Azure Portal, when you upload a file, you can specify the folder path in the Upload to folder field under the advanced options.
You can also use Azure CLI or SDKs (like Python, .NET, Java) to programmatically create folders by specifying the path when uploading blobs.
For faster access and upload of files, please use AzCopy approach
Best practices while using ADLS gen2 can be found from this URL
Hope this helps!
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