How to Make Your Instagram Photos Private
This wikiHow teaches you how to prevent people from viewing your Instagram profile. You can do this by setting your Instagram's privacy to "Private", which means people who want to view your account will not be able to do so without first requesting and receiving permission from you. This process won't affect your existing followers. As with most Instagram-related activities, you cannot use the Instagram website to change your account's privacy settings.
Tap the Instagram app, which resembles a multicolored camera. This will open your Instagram home page if you're logged into Instagram. If you aren't logged into Instagram, type in your username (or phone number) and password and tap Login.
It's in the bottom-right corner of the screen. If you have more than one account signed in on your Instagram app, this will instead be the profile image of the current account.
This icon is near the top-right corner of the screen on both platforms.
It will turn blue. This signifies that your Instagram account is now private, and thus impossible to see by anyone who you haven't approved.
It will appear in a pop-up menu notifying you of what is entailed in a private account. Tapping OK confirms your profile change. People who aren't currently following you and who you haven't approved will no longer be able to see your Instagram photos.