Read this page to learn how to have a better digital footprint.
The grandma rule is as goes:if you wouldn't like your grandma to see it,don't post it. this will help you to be kind.
Example:sometimes you will get addicted to a game and get mad when you lose so the best way to relax is to take a break.
On websites, click on the icon to the left of the adress bar and check if your connection is secure because if it is not hackers may be able to see your private information.