Hi
It is important to get the right numbers/units, so please contact your doctor again and clear this out.
The reason is that there are two alternative ways of measuring hba1c and unless we know if your score was 6% or 60 mmol/mol we can not interpret it correctly.
A score of 6% is equivalent to a score of 42 mmol and is an elevated score for a non diabetic at the lower margins of pre diabetes. Pre diabetes means that you do not have diabetes yet but that if you do not change your lifestyle/diet you are at risk of developing diabetes.
A score of 60 mmol/mol is equivalent to 7,6%, which is well into the diabetic range suggesting that you may already have diabetes (although two A1C scores above the diabetic threshold of 6.5% or 48 mmol/mol are required to formally diagnose diabetes).
Did your doctor actually say if you have diabetes or not.
Irrespective of which of the above applies you need to manage/reduce your glucose levels by increasing physical activity and reducing the amount of carb rich food (pasta, rice, bread, potatoes, sugar) in your diet. Best way to know how much to reduce is through trial and error by obtaining a glucose meter, testing before and two hours after each meal and reducing carb rich food consumption until the after count is no more than 2 mmol from the before count.
Best regards
Pavlos