I don’t blame you and agree it’s not worth getting anxious about it, but keep in mind you have grown up in an era of complete corporate take over, they’ve managed to make you believe nothing you can do matters and doing a few small things like recycling is really all you can do, when the reality if the complete opposite.
The Ozone layer was fixed because of an international agreement at the global level. Things can get fixed, and this is exactly the type of problem that can only be fixed by governments, but people have to care and get involved/vote or do whatever they can to impact decisions at a global scale.