Well... you could make a list of those silly worries and try to remember if they ever happened. If not, write it in big letters next to the worry - NEVER HAPPENED! I don't think age has much to do with it...
Gonna let you in on one of my silly, stupid worries. My first husbands THIRD wife is a very insecure person and constantly critcizes what other people do, especially me... or at least she used to. She doesn't talk to me anymore. But on the grandkids birthdays, the whole family gets together and she and my ex are always there.
If I'm making something for the grandkids, my self-talk becomes all about what she MIGHT say about what I've made. I find myself answering her in my mind; counter attacks at her supposed critisizms. It goes on and on for days before the birthday party. THE WOMAN DOESN'T TALK TO ME ANYMORE! So why do I worry?? Why do I fight with her in my mind?? Because I allow myself to let her get to me! What do I care what she thinks?? She's a low-life! Honestly!
It's a battle, but I've been working on not doing that anymore. Sheeeeesh!
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Psalm 119:105 Thy word is a lamp unto my feet, and a light unto my path.