Google does a great job of explaining how to use it's products. They recently updated their training website
Google Online Training.
The site has a menu to choose the area you want to learn more about. I would suggest starting with Docs and Drive or Gmail if you are just beginning.
If you take 5-10 minutes, I am positive your time will not be wasted, there are tutorial videos and clear explanations.
Here is an example of one of the videos: