My husband, 30 years after his type 2 diagnosis, is the same. We looked for the answer, tried more closely watching diet, increasing exercise, he lost a few pounds - nothing worked. This summer, he added Jardiance to his regimen, removing one BP med (Jardiace acts a diuretic) and reducing his Glipizide. It worked, his A1C is below 6 and he has lost a few more pounds (not a necessity - his BMI has always been normal.) It's not perfect - side effects of dizziness and dehydration must be managed.
My daughter, only 40 and not overweight, considered pre-diabetic, has turned to Ozempic to manage her A1C. She learned from her Dad's experience to reject Metformin as a first line - he has CKD from long-term use.
Where are you in your diabetes journey?
Sue