2. I see two images, they are not blending together.

Fix in settings: modify the IPD (Inter-Pupillary Distance) for your own eyes. Remove your phone from Google Cardboard. Touch the “VR Setup” button. Then touch either the arrow on the right or the arrow on the left to increase or decrease the IPD until you can make the images converge when you are looking into the Google Cardboard. We found that an IPD of 55 worked well for us with our iPhone 6. See illustrations below.