I wouldn't even go so far as to say that the human species will still exist in 200 years from now. You know, nuclear weapons don't get weaker over time and who knows what another war would do to us.
You're right. Humanity is a very fragile organism, and our planet is a small grain of sand in the middle of the galaxy. Therefore, anything can happen at any time. Our civilization is proud of its technology, the fact that we invented nuclear weapons, the Internet, the blockchain ... and in fact we are defenseless against the forces of nature. Therefore, you need to live and enjoy every minute!
We are part of the process in terms of the way nature is creating itself over time. We better influence that process in a positive way.