Hello Fernando!
I decided that for me, for example, very important speaking practice, but it's very difficult to find somebody for practice!
Also I use some websites:
* voice of America for learning English
* ororo.tv - there is many movies and serials with subtaiters.
* elllo.com - for understanding non-native speakers
* "English in Use" - my favorite Englsih book.
I don't have special schem, I use this websites for improving my skills.