---> At what time of the day do you workout? <---
I think 2 gallons of water is max you need.
I would do 4 workouts a week max, hitting every part once a week.
Something like Chest+biceps, Back+triceps, Shoulders+calves+abs, Quads+Hamstrings. Or whatever program you find suitable.
Glutamine is a waste IMO. It can be a worth supplement, mostly to endurance athletes, and it needs to be taken in larger amounts every day. I would replace that glutamine with 10-15g of BCAA 30 min before workout.
You eat plenty of protein, maybe even too much. Don't forget to swap that whey protein at 1pm and 6pm with some blend of proteins (Syntha 6 for example).
For carbs, if you eat 1 cup of oatmeal + 2x 10 oz potatoes = 166g of carbs
I need to know when are you working out during the day.
Than I will change your diet plan to suit you.