Troubled rocker Pete Doherty has spoken of his "despair" at trying to quit drugs. The Babyshambles frontman, a crack cocaine and heroin addict who has been arrested numerous times for drug offences, is finding giving up narcotics difficult. He says, "I feel as if I'm coming out of some sort of valley of despair. It was hell, man. "Every year a mate will say, 'Things are going to have to calm down now - they can't get any worse than they did last year', and then bang, something will happen."