As to judging our own time, and thereby gaining some basis for a judgment of future possibilities, we are doubtless not only too close to it to appraise it but too much formed by it and enclosed within it to do so.
As for death one gets used to it, even if it's only other people's death you get used to.
I auditioned for Robert Redford once and I was so starstruck I couldn't even speak. I had a mic wire at a screen test clipped to me and then I got kind of nervous and I paced in a circle and then took a step and tripped and fell on my face. You just have to forgive yourself and keep going on.