The weapon we have to fight worry/anxiety is the knowledge/faith that God is in total control & He’s good & He reigns/rules & He knows every detail of our life & He’s got it.
Worrying changes nothing. It’s like revving your car engine, you create a lot of noise/heat & get all revved up, but you don’t go anywhere.
Think about it, how many problems have you solved by worrying? Worry won’t change the past, it can’t control the future but it can sure make today miserable.