When it comes to Haskell, there is a big problem that the people best qualified to speak on the matter have invested a lot of time in Haskell, and therefore are subject to biases associated with their investment in the field.
For one thing, I would ask what programs use Haskell. The only major project I'm aware of is xmonad. This should tell you something about how practical Haskell is.
On the other hand, you may learn something from Haskell. I studied Haskell because I believe there are much better languages out there, and in order to find them we need to understand and improve on the theoretically most advanced languages (i.e. dependently typed languages) and learning Haskell was the best starting point. If this is not your goal, I actually doubt another 6 months of Haskell will help your day to day programming.
Also, what have you managed to learn in the past 6 months? And how were you studying? I found Learn you a Haskell to be the best introduction.