We are at the very beginning of time for the human race. It is not unreasonable that we grapple with problems. But there are tens of thousands of years in the future. Our responsibility is to do what we can, learn what we can, improve the solutions, and pass them on.
Also, as I've gotten older and more mature, I've become much more comfortable in my own skin. After 25 years of doing stand-up, that's reflected onstage.