What the hell else are you going to do?

When I was younger I thought about trying to study the science of aging to hopefully reverse it. But as soon as I got into the field I realized that a) barring some miracle breakthrough, the technology will not happen in my lifetime; and b) the circumstances of my birth would make it incredibly difficult and unlikely that I could ever aspire to work in such a field. Going to college at all was a stretch, and I eventually had to drop out to start working.

So anyway, that option off the table, there's no solution. You will die. Your options are to either let anxiety destroy any enjoyment you might get out of life, or just keep living anyway.