Therapeutic patient education (TPE) is a key element in the management of people living with type 2 diabetes. The benefit of therapeutic education (TPE) has been clearly established on glycaemic control. Continuous interstitial glucose monitoring (CGM) can be considered as a TPE tool for people living with diabetes. A direct reading of the effects of diet and physical activity on glycaemic levels could have an impact on the initiation and maintenance of therapeutic lifestyle modifications. The investigators therefore propose a prospective randomised study in 2 arms : * a group of people living with diabetes receiving standard TPE vs * a group of people living with diabetes receiving standard TPE + FSL 28 days Ourmain objective is to determine the benefit of CGM on HbA1c at 3 months between 2 arms