Get out of my head

Why can't you just get out of my head,
cause i can't take it anymore,
your all i think about,
i don't feel anything anymore,
all i want to do is cry,
but my eyes are dry,
there are not tears left to cry,
anyway i sick of crying over you,
i know that your not worth it,
i really do,
but that doesnt stop me from loving you.