Get someone to test you with questions about selected listening material. Carefully look at the questions about the listening material. Pick out keywords from the questions that will help you to know what to listen for. This process is similar to the actual test. It will help you focus on the details and train your listening skills.

To improve your listening, you can watch videos, movies and series with English subtitles. Listening songs with lyrics would be useful, too.

Listen to videos on youtube with English subtitles. Perhaps start with documentary style videos as the English spoken by the main narrator generally is easier understood as they tend to speak in a standard register that avoids a lot of the slang and shortcuts that native speakers use in their speech.

This time just relax and watch English videos listen carefully and you can watch series too with so subs it can help a lot