I wish you were wrong, but you are terribly right. We don't decide this. We can only research, adapt, invent or repurpose things, surmount the obstacles... and have faith that things still have a chance to improve.
It is so easy to be consumed by fear... such an instinct to panic and live under stress... is that real life?
My stand is... Enjoy every second of bliss with all your soul and smile and help as much as you can.
I still believe there is a reason for every person to live their life.
The fact that it has to have an end has always been in dissonance with my intuition that it can't be it, there must be something greater than a luck show in this world... something I will know later.
For now, every breath I take is with a sense of gratitude and love for having that day, too, near my loved ones.
Be kind, brave, and be amazing; long or short, life is best lived when you are the ultimately best version of you :)