The weak listening.

I have downloaded a video an English audio from the internet about English today.
今天我在网上下载一个音频.

The video audio is very c learly and slowly, I tried to hear what it is talking about.
这个音频很慢也很清晰, 我试着听它在讲些什么.

[The translation is correct but the meaning is wrong.  This cultural assumptions]

The words from the audio are spoken closely and are clearly enunciated. I tried to understand what it is about.

besides some words I got it, I didn't know anything. Except for some words, I was unable to understand the rest.
除了几个单词,我什么也没有听懂.

Sometimes when I was hearding some of words I heard, felt it sound very familiar.
有时候一些单词听起来非常熟悉

but I couldn't remember what it mean immediately. However, I was unable to recall what they mean immediately.
但是我不能马上想起来它是什么意思.

As I reminded the means, I had lost next words. When I do recall the meaning, by then, I have already lost track of the content material.
当想起来的时候,我已经错过后面的内容了.

In the end, I got nothing was understood.
最后,我什么都没有听明白.

what shall I do if I want to improve lisening.
如果我想提高听力,我将做些什么呢.

If I wanted to improve my listening skills, what should I do?

First you have to figure out what those words mean and write it down.  Once you have written down everything and understood what it says, then listen to it again with those written words in front of you.

If you send me the audio link, perhaps I can help you.