If you are a living person you need never second guess or question the worth of your existence. Your worth was "created in God's own image."
The truth is, every moment, every second in this world is incredible. But we're just so used to it is all. If we take a moment to think about it, take a second out of our lives, we can really see how the world is, in fact, ridiculously incredibly mind-blowing.
Certainly there were times when overtly sexual images were not as public as today, but even a cursory overview of history shows that sex has always been in the forefront of humanity's thoughts.