iPhone Silliness

I got a gel cover for the phone and it comes with these clear plastic sheets to protect the screen. There are little numbers in the upper corners with no instructions. I figure I can do this. Wrong! Air bubbles and dust on the now repositioned protector. When I got home, I googled and got a video explaining the whole thing. If it’s that hard to do, how am I ever going to figure out how to shut off the alarm!!??