I’m assuming you’re fairly young. I think a historical perspective on these issues is really important. If you read environmental writings from the 60s, there was a ton of fear about all sorts of issues that never came to pass, or trends that have reversed. For example air quality in most of the US is infinitely better than it was thanks to technological progress with car emissions, and that’s despite the fact that we have way more cars on the road than we did back then. Water the clean water act had had a dramatic impact on improving water quality. There were real fears that massive populations would die of starvation from famines. In face globally food security has never been better despite the increased population. Population projections are expected to level off around 10 billion and then start declining, so some of the other doomsday scenarios aren’t going to come to pass. Now obviously global warming and a mass extinction are extremely problematic and worrying, but there are solutions to both that we can work towards. Just in the last few years I’ve seen a ton of native habitat restoration in my community for example.