If you have been banded since 2010, you need to get off the Protein Drinks and eat real food. You are really missing out on all of the Vitamins and nutrients, plus the shakes will not fill you and are sliders so you will be more hungry.
Go back to 2-3 ounces of dense Protein, 1/4 cup of veggies and 1/4 cup of a good carb. You should be able to do that two to three times a day with two Snacks if you only do it two times a day. I can't do it three times, too much food.
My snacks are usually Quacker Oat Squares Cereal (dry), banana chips and almonds. Sometimes a slice of cheese and multigrain crackers. Find stuff that is good for you that you enjoy.
Log everything you eat and track your exercise on something like my fitness pal.
Are you taking any vitamins? You should be at least taking a multiple and calcium citrate. I also take a b complex and Biotin.
Agree that you need to see your nutritionist to get you on track with real food.