Downloading an Image from Drive
With your image now uploaded to the cloud (which Google Drive is considered because it is in some remote server somewhere you have know idea where, just floating in cyber space like a cloud) you have to retrieve it and make it exist here, on your computer. This simply requires you to download the image. Not sure how? Check out this video.
Important Note for iPhone Users - Apple uses its own file type, HEIC, that is incompatible with pretty much all of the rest of the world. To make this file compatible with Adobe software, simply visit this site and upload your image. When it's done, there is some small text beside the file that says download. Click on this text and the file will appear in the downloads section of your device as a JPEG that will work with Adobe software!