A good way to enhance your listening skills is to watch an English show or movie with subtitles. Try and focus on finding the vocabulary you know in the movie/show. Once you hear the characters say a word/words you know, pause the video. Read the subtitles and see if you understand what they are saying. Rewind slightly continue the video, and try repeat what they are saying out loud. You'll find yourself being able to identify what is being spoken about alot better. Then try and watch the same movie/show again without subtitle, this will help you find out how much you understand. by doing this regularly your listening skills will improve. Having more conversations in English can also really help reinforce the vocabulary you have learnt. You will slowly start to understand what is being said to you.