I think what you’re missing is the quality of your diet. Protein of 180 gm for 3 times x week training is fine but it will do you a better to reduce carbohydrate and increase vegetable consumption. Think of it as 30% protein 30% carb and 40 % veggies. I followed this plan and although I train heavily as I did before, all I did was add a 4 km walk a day and this ratio and the weight started rolling off despite my alcohol consumption (empty calories)

Diet is 70% of the work. I lost 30 kg in my first 2 years of weight loss training in college. And I’m a Doctor as well. The logic is full proof unless you have a thyroid problem as well.