The is an old saying that goes like this ” it won’t happen there is no need to worry and if it happens there is no point in worrying, you just have to live with it if it happens”, worry will not change what happens.
Worry is the running of horror movies about the future in your mind. If you keep running those movies you get a false picture of life. Your picture of life is distorted. You tend to focus on the negative facts, you don’t see the full picture. You don’t focus on your coping skills, knowledge, etc you can use to deal with any eventuality if it happens and can even prevent those things happening. Worry is really the preparation for the awful things that can happen so that you are prepared for them.