Can I Stop Taking Metformin If My Diabetes Is Controlled With Diet, Exercise, And Medicine?

HII SIR , I M 37 YEAR OLD AND I have been detected diabaties three month before and prescribed me metformin tablet , as i m taking its regualarly as prescribed and joining my regualr excersice session , my sugar level comes in control and last hba1c test resul was less than 6% . i would like to know if my sugar level comes under controlled and if i mainatain diet and excersice regualarly , can i stop medication (metformin) your suggestions will be appriciated sir,