Some days you simply need to get big picture: there has not been a uniquely good time ever. Just times that sucked less for some people for a while, at varying rates. You can work to improve the world, but very few things are miracle cures. Frankly, the synthesis of insulin and smallpox vaccines was that one "it's weird it happened twice" meme, except medical miracles. And even then, getting them to people has been trouble, and people still die of diabetes and (for a while) still died of smallpox. People died of it after the vaccine came out. It didn't get everywhere. People died of smallpox the day before it was invented. Someone almost certainly had averse reactions and died of them.
The world has always been in some state of pain and war and fear. We can work to make it better, but sometimes you need to remind yourself of the long view.
It's going to keep going. Maybe without you. None of us are getting out of this alive. We can do the best with the time we have. But the whole big thing will keep going. There have been a thousand terrible mass events and we can work towards ending those, but it is much easier to cause mass harm than mass help. Help takes time and effort and buildup. Bad things can just snowball out.
It's always been like this and it likely always will be.
All you can do is take it one day at a time, and know at some point, it will be out of your hands again.
But it will keep going longer than we can possibly know.
