To make managing personal data easier, in 2015 Google revamped its “My Account” page allowing it to be a one-stop spot to seize control of your privacy and security within a user-friendly interface. Rather than visiting settings for every individual Google service—Gmail, Google Drive, Android phones, YouTube, and a hundred others—you change global settings here.
To begin, you should perform two actions: a security checkup and a privacy checkup.
In Security Checkup you can see which devices have access to your account, which third-party software have access, recent security events and sign in & recovery options.
In privacy check-up you have the ability to manage:
These tools are very useful and will undoubtedly help you take back control of your data.