I think who are we and where we came from are different things.
We came from microscopic organisms that self-replicated. Over about 3.5 BILLION years of evolution modern humans were the result. And that's only over the last 300,000 years or so. Asking who we are is also the result of evolution. Bigger bodies, bipedalism and an expanding brain created cognitive thought. And that's the doorway to "who are we?"
Personally, I see humans as what we are. Animals. Just the result of random mutations. No different than any living thing except for cognition. In a billion years, if life continues (which it probably won't as we know it), I imagine all primates will be fully cognitive. I think as humans we lean in to feeling "special." I'm not sure we are. We're FAR inferior in some ways compared to other animals.Some ants can carry 100 times their own weight. That ain't us.