Among 4 IELTS skills, the most challenging one is listening, as it only appears once, meaning that if you missed the information then it has gone forever since no second chance is given.
This case is above found when you sit for the real exam. However, when you are at home and want to train such skills, then I suggest doing it more than one time. You can do it again and again. I am sure every time you play back the recording and re-listen it, then you are more likely to catch something new. This can be new vocabulary and/ or new ways to pronounce the phrases, prepositions and even the articles. Therefore, this helps you improve such skill if you practice it deliberately.
