If you truly believed that everything can only get worse from here I don't know why you're still here, frankly.
Edit: I'll elaborate. You will die before the worst of it. We all will. I went to school for ecology, I know how grim things are. Worsening climate crises are going to push desperate people out of increasingly hot and arid regions into places with more fresh water and that will cause terrible conflicts. We're driving a mass extinction event that's making the leaderboards. (I don't think we're hitting K-T numbers without nuclear war but it's gonna be bad.)
But we also, as a species, bounced back from a 98% population loss that lasted a hundred thousand years. And that was Stone Age technology. I have the utmost faith in our adaptability and I'm pretty confident humanity will survive our own bullshit. Further, I don't think morality enters into it. Life is amoral. Existence is amoral. The ability to contemplate the nature of existence does not elevate us above that amorality. So I'm not throwing in the towel.