I took a Haskell class couple of years back (Functional Programming) as reference I worked for 12 years before as Software Engineer using Pascal, C, C++, Java,

I took a Haskell class couple of years back (Functional Programming) as reference I worked for 12 years before as Software Engineer using Pascal, C, C++, Java, Perl, Shell, Python, Visual Basic, and I felt like I was learning Chinese, I really put extra effort, but Monads, Applicatives, etc were complicated and way above my head. I really never found a reason to continue that punishment, I admire the teacher and the community who work on it, maybe not for me. But not easy