Is there any way to improve a listening skill in foreign languages?
I believe, one of the most important skills now is an ability to concentrate on the thing you are listening to.
Mindfulness is the key.
Well, not actually mindfulness, but building up a habit to be hungry for any piece of information, any text, any audio track, any word. When you learn foreign languages, you need to stay hungry for foreign languages. To stay always interested, curious, captured, intrigued by the information you are going to listen to. Stay hungry, stay positive, stay motivated!