Listening Skills - Train your ears
Your ears will recognise words that are similar in sound to your own language, but may well ignore sounds they're unfamiliar with. You need to train them, just like you have to train your mouth a bit when you're practising pronunciation. Find mp3 files and videos on the internet that you find challenging, and concentrate on distinguishing individual words, don't worry too much about understanding what everything means. Listen to recordings again and again, until it's easy and relaxing.