I don't see a 'studies' folder in my workspace?

First: make sure you followed the steps for linking your studies of interest to your workspace (see How can I create a workspace?)

You can also check if you linked a study to your workspace by looking at the workspace detail section:

If you are sure you have linked at least one study to your workspace, it may be possible that your studies did not mount correctly. Run the following line of code in the terminal of your workspace to manually mount S3: