Since the dawn of life on earth, an estimated 240 million generations have roamed the earth. That's potentially trillions of ancestors, counting each generation, all culminating in you
Despite virtually impossible odds, every single one of these ancestors beat hundreds of millions of sperm cells to your mothers egg. And every single one of them then faught their way through a dangerous world, struggling to survive. And not only did they long enough to reach sexual maturity, but they found a mate and they passed on their traits. I'll just repeat that - of your trillions of ancestors, every single one managed to survive life long enough to find a mate and produce offspring, eventually leading to YOU.
Of all the bad things that could have happened - Fatal accidents, loss of fertility, etc - not A SINGLE of these happened to any of your trillions of ancestors. Your ancestors survived supervulcanos, ferious predators, meteor strikes and war. They were all either strong enough, smart enough, or good looking enough to get to have sex and raise children.
You're the descendant of the winners of the game of life. ALL your ancestors played it, and ALL your ancestors won. You have been granted the amazing gift of life, by the birth of the universe, by the formation of the elements you're made of inside stars and supernovi, and by the strength of your ancestors.
It's the most precious gift anybody could ever ask for.
Don't waste it.