You are doing great with your weight loss! As for reducing the "middle areas", those are the first places the weight goes ON and will be the last it comes OFF. Just keep doing what you are doing and be patient. Eventually when you near your goal, those areas will be smaller too.
My son lost a ton of weight when he decided he would not drink anything other than water. We really don't need anything to drink besides water. Too many calories hide in other drinks.
My last advice to you would be to BUILD MUSCLE. Learn how to lift weights. You can learn a dumbbell workout that you can do in your dorm room. Muscle mass is the greatest fat burning furnace there is. Muscle consumes a lot of calories and will burn fat even when you sleep. Boost your metabolism by putting on as much new muscle as you can.
You can do it!