Thank you for your query.
You are definitely having gestational diabetes
mellitus quite early on in pregnancy
If not treated, this condition can have various repercussions on you and the baby including miscarriages, macrosomia, increased chances of fetal abnormalities, increased risk of cesarean section, various complications to the baby after birth etc.
please take insulin
If your sugars are controlled on insulin, the dose can be tapered off or altogether stopped, but it is hypothetical
Right now, take the insulin as advised.
Consult a dietician and have a proper diet and exercise plan charted.
You have to have a proper diet, avoiding carbohydrates and excessive fatty foods and starch containing foods like fried food, oily greasy stuff, potatoes, rice, high GI foods.
take lots of green leafy vegetables, curd, milk, dairy products, fresh fruits with low GI.
A nutritionist should provide you a complete diet chart.