I've met an English teacher while traveling and he was really focus on teaching his students how to get rid of their accent. I was a bit curious about that since I got an accent myself.
His method is really easy. You have to listen to audio, music, movie or whatever you like and repeat after them while recording yourself. That's the only way to be aware of your own pronunciation. Anyway, do it until you are satisfied with your pronunciation. This method takes time, you will need quite a lot of practise :)