Who is in charge of your life? If it is you, then you have good reason to worry. If it is God, than worry is unnecessary and counterproductive. When you start to worry or feel anxious, give it to God then back off a little redirecting your focus to God.
Worry is natural but it is so draining. It accomplishes nothing and only hurts. With this news about my dad, my first thought is that it can’t be cancer and I’m not worried, let them rule it out. Then my mind starts to wonder, I talk it out with other people and all of a sudden I’m really worried. I love my dad more than anything and just want him to be well. My worrying isn’t going to help him get better. The good news is that God is in control, today he is having the biopsy and once we know one way or another, we will be able to fix the problem.