When you think about it, there really is no point in doing anything. Probably you will die at 70 or 80 or even before. If you die before your spouse, you die knowing you are leaving them in grief and sadness with no way to console them. Even if you're lucky enough to live to 100, it's still such a brief period, and it goes faster the older you get.

After you die, a few people will remember you. But they will die themselves too, and the memory of your existence will be gone forever. It's not as if future people will ever be interested in your life. You and all record of you will just fade away. Even if you were famous somehow that only means your name might live on a decade or two. If you try very very hard, you just might be able to make an impact on your time or even the near future. But what's the point? That, too, will pass. It's not as if your body will lie peacefully in a green field next to your spouse eternally. Even if you made a giant impact, soon enough the world will be hit by an asteroid, or a plague, massive climate change, or some other great disaster.

Even if we manage to avoid that, in a cosmic eyeblink, the Sun will die. Maybe we will have escaped the solar system by then, maybe not. It seems highly unlikely given the laws of this universe. But even if we escape to another solar system, eventually the universe itself will simply end. There will be nothing left, not even the information that we ever existed. Our whole spacetime will end, or at best, loop. And even if, by some amazing cross-dimensional magic, the "human race" (whatever it looks like by then) has survived and figures out how to teleport to another dimension, no one will have thought of you personally for a trillion years and never will again.

It seems that trying to do anything really meaningful is just a waste of time. Nothing you can do will ever change the final result. Not only will we be annihilated, but the information that our entire universe ever existed at all will be gone.