I did the same thing as you, but I knew that if I would put even a few non-Jewish songs on my ipod I would just end up wanting to put on more and more and eventually get right back to where I used to be. So the middle ground that I got to was that at the beginning ever time I heard the any English music I wanted more, so I completely stopped. but now I am able to go places that are playing the music and be with people who are listening to it without wanting more and wanting it on my ipod.
I don’t know about you but for myself I didn’t find it so possible to just keep “some” of it.