Birthmark

I used to have a dark birthmark on my leg. It poisoned my life. I would wear knee high socks to cover it up. One day, my aunt, a nurse, said: “Get rid of that. It can turn into cancer.” She called a dermatologist friend and before I knew it, it was out. Gone, never to return.
I never gave it a second thought. And now I remember how I made myself miserable over it and just can’t believe I made it matter so much. There must be something to learn from that. Don’t sweat the small stuff? Ideas? Suggestions?