How to improve your english level? There are some points:
Point 1: Reading everyday
If you want to improve you english level, you must to read a mount of materials to increase your vocabuaries and Phrases.
Point 2: Listening everyday
Another way, you must to listen to increase your input while you reading materials.
Point 3: Repetition
When you have learned some materials, you should take some repetitions. Here, you can use some APP, such as Anki or SuperMemo. If I were you, I'll use SuperMemo!
This is my first article in http://www.jianshu.com/.
If you want more resources, please search group of ***Supermemo 16 ***in QQ app.