Intuitively you know that you are no better or worse, no different fundamentally, no more or less special than anyone else.
This, however, does not mean that you are not important.
In fact it is quite the opposite, and, to appease my high school English teachers and remove the double negative:
You are important, equally as important as every other human on the planet.
How important is that?
Well, fundamentally, you are of paramount importance.
Yes, everything that you do, or do not do, matters.