Cubason

About a year ago I moved to a new country (the Netherlands). With the help of Michel Thomas and a bunch of friends, I picked up learning the local language shortly after that, and in general I made some progress I am satisfied with. I can read the newspapers easily, I can read regular books with the occasional help of a dictionary, and I can speak with the locals if they speak clearly. And this is my problem, half of the people speak clearly and slowly enough for me, but with the other half, I don't understand much, I cannot parse even the simple sentences. I tried listening to the radio -- no luck, I can pick up only single words. But on the other hand, I went through several audiobooks and I can make out most of the sentences, and make enough sense of the rest. I feel hopeless at this point, I have no idea what should my next step be. Could anyone recommend something?