I think your BMR is higher, maybe around 2500 calories. If you want there is a formula online that you can calculate exaclty how much it is! If you are trying to lose bf i would suggest you keep your calories up and do more exercise. Its better to burn the fat than to starve the fat!
I believe you need to increase your solid food intake. You are rellying too much on protein shakes. Our bodies build muscle and lose bodyfat more efficiently when they are fed with solid foods every 2-3 hours. Try to add more vairety to your diet and limit your shakes to 1-2 per day.