How lucky are we to be alive

There are 100 billion stars in the galaxy, and most have planets. Some of them, not all, are in the habitable range for our kind of life. We evolved here because we could. Not because Earth was made for us. It's probably happened elsewhere. It's not about Earth being perfect for us (you couldn't survive on most of Earth - try living in the ocean, or Greenland). It's about us evolving to fit what we've got, or at least small parts of it. If we couldn't live here, we wouldn't be here.

One of the odd outcomes of the "chance in a million" type of lottery is that there is a winner. And if the winner is us, we question how we could be so lucky. Just human nature to do that.
But if humans were somewhere else, never evolved to become winners in that lottery, then what? They would never become the beings who could ask the questions that you do. Not so strange now that you think of it that way, right?

Every lottery has a winner ... no matter what the chances.