What is our real purpose here?
The idea of "real" purpose is whats wrong with the question and why it cannot be answered. The parts of our brains and cultures that grasp for purpose evolved to aid our capacity to live and reproduce. Subjective purpose is real, but its meaningless to try to reach consensus on that obviously, subjectivity being what it is.
We are here because we want to be here. Our purpose is to experience and learn new things and be happy.
If we are made of the same energy as the universe, and everyone and everything is connected, then, in a way, we are our own gods, and our purpose is what we choose it to be.
Our purpose? Do you mean the overall, big, big, BIG purpose? That was summed up beautifully by Alan Ormsby in the eponymous film "Children Shouldn't Play With Dead Things":
"Man is a machine that manufactures manure."
If you're asking why we are on this website, our computers get sexually excited when 1s and 0s are entered into them. Some computers like the different variety of 1s and 0s entered by posters on this website.