Compulsively worrying about the causes and consequences or one’s anguish is draining, and self-sustaining. Like scratching an itch, the more you do it the easier it gets to do it some more. You can make an itch go away by consciously focusing on it, the same it true of intrusive thoughts.
Proper worrying isn't a gift, nor is it something bestowed on a lucky few by genes, education or innate talent. To worry properly you need discipline and ambition. It requires commitment, it won't happen by itself.