Hello, i have seen many people with "ct phobia" many said they stopped working because of so much anxiety. would having a ct scan of the neck at age 16-17 carry many risks in the future? honestly it makes me worried?

A CT of neck will not have effect on your health, now or later. You can reduce your risk of cancer by adopting healthy habits: Eat a mostly vegetarian diet, avoid alcohol, tobacco and street drugs, avoid excessive exposure to sun, maintain healthy weight, get HPV vaccine, exercise 30 minutes each day, drink enough water so your urine is mostly colorless. Wish you good health!