Dietary changes for diabetic. Products?

Namaskar My fasting glucose is 171 and hba1c is 7.2 confirming diabetes and have been prescribed with  metformin 250 mg one week back and told to exceecise and avoid all sweets.my doctor is very good but still i m tense. I have started taking metformin 250 mg twice. But have heard of its side effects and fearing of dosage increase. So searched for some other diabetes reversal program. After watching some videos related to diabetes reversal claims feeling confused for dietary changes. Some are saying to stop for milk and milk products , some are saying to cut fruits, for first 3 months. Its quite confusing. Have taken help of personal dietician also but she has given diet including fruit and milk products. Should i go as per dietician diet or cut all the milk products?thanks