If you like listening to music, songs are an easy way to improve your English (or any other language.)
When I was studying Turkish, I used to print out lyrics from my favourite songs and with a dictionary, try to work out the meaning. Often the phrases in the songs were not very useful For example: Do you have a heart? Is it empty or full? I don't think I have ever used this sentence in Turkish but from this song I learnt the words empty and full and later when I learnt a new tense, I recognised it from the song. (If you'd like to listen to that particular Turkish song yourself, you'll find it here.)
Listening to the song, understanding the lyrics, singing the song...all of these are excellent ways to practise your English. You learn new vocabulary, you learn grammar and your brain remembers whole sentences much more easily with music. (If you like music. If you don't, then this is not for you.) Singing is amazing pronunciation practice. And of course it helps your listening comprehension.
And the best thing? It's fun. And remember - if it's fun, you'll learn more quickly.
Here's what to do: