Hello,
My sincerest advise to you would be to take appropriate diet measures along with exercises and medications.
If you are not able to control your diet and calorie intake,your blood sugar levels would not be controlled properly.More over you are a very young person and as your age advances,these oral anti diabetic drugs would keep on loosing their efficacy and one day you would have to switch over to injection
insulin.This happens because of progressive loss of beta cells of
pancreas which are responsible for production of insulin in response to the intake of oral anti diabetic drugs.
So the best would be to keep a control on your diet by taking 6 small meals a day rather than 3 big meals.
Avoid sugar,sweets,colas,junk foods,deep fried foods etc.
The more control you have on your diet,the less dose of medicines would be needed.
Make sure that your blood sugar,blood pressure and lipid levels are controlled meticulously so as to avoid various types of future micro as well as Macrovascular complications.
As far as exercises are concerned,since you are young,you should opt for brisk walk for atleast 45 minutes a day.
Take medicines regularly as advised by your doctor.
Thanks