The Roman Empire existed for nearly two thousand years with varying ideologies.
Think about that.
Two thousand years. Each person born thinking he’s gonna be somebody. So many politicians scheming and backstabbing. So many wars.
All forgotten.
We will be forgotten too. Water existed on Mars for billions of years. It is entirely possible there was an entire generation of civilizations that died and lived there, all ultimately forgotten and reduced to nothing but orange dirt.
Nothing matters. The Universe is indifferent. Enjoy yourself while you can.