Am I diabetic? So worried. A1c 5.2 CPeptide 1.5. Insulin level 4.3 uIU/mL Estimated Mean Plasma Glucose 87.16. Are the numbers normal? I am so afraid to eat sugar and carbs. 51 years 120 lbs.

What's the problem? Your HgbA1c and glucose are fine. Diabetes at your age is genetic and not caused by eating sugar or carbs. You're right to fear it, but even if you have the genes for it, you can hold it at bay by staying physically fit. Be less afraid of sweets and more afraid of not exercising. Best wishes.
Good shape. All laboratory results need to be interpreted in the clinical context and the doctor who ordered the tests is usually in the best position to do that. Having said that, nothing that you mentioned suggests that you have diabetes. You do not even have pre-diabetes. For good health - Have a diet rich in fresh vegetables, fruits, whole grains, milk and milk products, nuts, beans, legumes, lentils and small amounts of lean meats. Avoid saturated fats. Exercise at least 150 minutes/week and increase the intensity of exercise gradually. Do not use tobacco, alcohol, weed or street drugs in any form. Practice safe sex.