Total calorie reduction is the simplest and best way to reduce weight irrespective of whether you go for Atkins or Mediterranean or keto diet. If you can keep your total daily calorie intake to around 1000-1200 per day with a deficit of at least 500 calories should definitely give you a weightloss. Try reducing carbohydrates to less than 40%, avoid simple sugars, packed foods &processed meat, take more fruits, veg, proteins. Download some apps like carb manager or healthify me and calculate your calorie intake and adjust.
Do aerobic exercise daily for a minimum of 45 minutes.
Choose antidiabetic medications that can give you weight loss in addition to
sugar control. Consult your endocrinologist for such options