here's a way to improve your english... read comics!
serious!
especially comics like Asterix and Tintin... they have are
translated into very good english and slowly and surely you will
pick it up.. especially Asterix, where everyone and everything is
turned into a joke and a pun... like for example, the druid who
mixes their potion is Getafix.. get a fix, slang for using some
kind of drug...
have a read, and a laugh
and at the same time, improve your english 