Wow! Thanks alot for the answers! IL start tonight with what you said, I actually have to get up in the morning and work for about 1 hour and then go back home to sleep so perhaps that would be a good time to try. Actually that part about singing a song in your head? Thats what I always do, though Ive always thought that it ruins it but perhaps its the other way around? I try to block out the song in my head and imagine numbers instead, perhaps I should just do the song in my head... hmm IL try it! Thanks alot! IL keep you updated mate 
Have a good one

Have a good one