With this simple tip you can see the size of the files in your Google Drive, allowing you to identify which files are taking up the most amount of space.
To bring up your list of files in size order, go to Google Drive and on the bottom left hand side you will see ‘GB used’. Hover over this and in the pop up click Drive.
Or to speed things up click this URL: https://drive.google.com/drive/quota. Taking you straight to your files.