PLEASE NOTE: Photos on iCloud will not upload through backup. The photos must come from LOCAL storage and not Apple's Cloud Storage.
Tap the menu in the top right to see your app settings.
Tap on "Back Up the iPhone".
Toggle on or off "Include Video?" to include the videos on your iPhone, then tap the blue "Yes, Back Up My iPhone" button to save all your device photos to your FOREVER Account.
Tap "Ok, Got it" to return to the menu.