I wouldn't get 4 scoops of whey a day, that's a bit much imo. On a cut, I still only get 2, 3 on workout days of whey a day. Bulking you shouldn't need as much imo.
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You should be getting at least 20% of your daily calories from healthy fats, bump that up. Flax oil/natty pb/olive oil/from fish such as salmon etc.
Obviously real food is going to be better, and more filling. But if whey is convenient, and helps you reach your goals, by all means use it. I know it helps me out a ton.