Since language is a gradual, continual process, you need to approach the material with steady, consistent study habits. Don't think that you have to be perfect. Set some short goals that are challenging but not unreasonable. Developing the Listening Skill top Pay attention to what is being said. Both listen and think about what you are hearing.
Interest is essential to efficient listening.
Don't let your mind wander, but do take advantage of any extra time between activities to reflect. Anticipate what is going to be said next. Listen for mistakes of your classmates. Paying attention to their mistakes may help you avoid making them yourself. Concentrating on the main idea of what you hear is paramount.