@Sambelina I noted this elsewhere in this thread but it’s not immediately visible given the number of comments.
I developed Simple File Manager for precisely this purpose. You can immediately begin organizing your files with directories and even upload your existing directory structure. Your file names are also updated based on the directories they’re in so that you can easily look them up in the Shopify Products page.
Here are a couple of tutorials I’ve written to help you get the most out of the app: