Actually, cosmology has only proven how unique we actually are, so far. There's no way you can look out at the universe known to man, and into our own solar system, to see how incredibly blessed we are as a species.
The less life we find in space, the less "habitable" planets we find, the more this becomes obvious.
Until we find a being or a race obviously superior to us, I guess we have a free pass to be as narcissistic as we want.
I don't personally believe we are the center of the universe, rather we are mistaken about what the universe actually is. Even if we do imagine that we are in the midst of an infinite universe, there is entirely a possibility that there are beings that exist in a different dimension than the one we currently do. We are manifestations on a physical world, naturally bound to what we can see, hear, smell, touch or taste. Beyond that we couldn't perceive what else might exist.
I'm glad you are having a good time, I am too. I love everything about being alive, that includes embracing my instictual animal nature, as well as embracing my higher self, which even if it is somehow proven that there is no such thing, it is still a powerful way to improve one's self and be a more well rounded individual.