"Practice makes perfect." The more practice you put into something, the more perfect you will become at it. If you want to understand what people are saying, you have to spend a lot of time each day listening to English. And if you wish to speak English, you need to speak it every day with as many people as possible. Good luck!

Here you can find many medical lections. Most of them about surgey. Just try to understand what they are talking about. www.websurg.com/‎

For example, you can watch films in English with subtitles and without translating.

The only way you can get better at understanding people is to talk to people. The more you talk and listen, the easier it gets.

You can watch ted video's..www.ted.com