Currently 5'11, 204 guessing bf to be around 14%

Well here's what i've been doing the past 3 weeks and so far i've only lost about 2 lbs

meal1:Two scoops whey (40 grams protein) with flax oil, 1 cup oatmeal (dry)

meal2: Same as 1 w/out flax oil, 1 cup oatmeal

meal3: 2 cans tuna (40 grams protein), 1 cup rice.

meal4: 2 cans tuna,

meal5: 2 cans tuna (so much variety)

meal 6: Two scoops whey (40 grams protein) and some flax oil

I haven't lost any weight on my lifts and weight is dropping extremely slowly! I'm doing cardio 3xweekly @ a heart rate around 131 for 30 mins on an empty stomach. I've been searching around and am considering taking alot of dairy out of my diet (protein shakes with water instead of milk) as I consider myself "thick skinned". If anyone wants to critique this and make adjustments i'd greatly appreciate it! As always all feedback is greatly appreciated