I spend 3 days and learned all features of Go. Haskell, I spend 3 month just to barely touch applicative functors and a bit monads. I am expecting another year

I spend 3 days and learned all features of Go. Haskell, I spend 3 month just to barely touch applicative functors and a bit monads. I am expecting another year if I need to truly fluent in haskell.