Instagram: How to keep Your account private?

In the app version on the mobile device , Android or IOS

  1. In your account profile, tap  image-1595065862189.png  to open Settings.
  2. In the option image-1595065916023.pngSettings at the bottom left, Tap to see privacy options.
  3. Locate and tap the Account Privacy in Privacy settings 

               Privacy > Account Privacy.

This makes your account private. By making your account private, your profile contents and other information are not visible to the public.