I am a big fan of Google tools. There are Google Drive, Docs, Sheets, Sites and a lot more. I became a Google Certified Educator because I use those tools extensively and wanted to learn to maximize the productivity. It can be intimidating to learn all of them at once.
Google released a Chrome extension called G Suite Training that offers useful tips while you actually use the tools.
Once you install the extension, you will see a new training menu in your Google Apps. You can tell by looking at the question mark with a Google-colored circle around it. Hit the links below to start learning G Suite!
G Suite Training | Chrome Web Store via G Suite Training