Haskell Reduction Expression

So recently I started taking a course about Haskell. This whole functional programming thing has me really hooked lately and I really want to get good at this. For me as a programmer Haskell is “not” that difficult. What i mean with that is, Haskell in a sence isn’t hard to grasp. You have functions. Everything is a function. You have a switch statement on steroids (quite insane steroids tbh ^^) and you Algebraic Datatypes (which are also quite nice).