Merc gave a session quite a long time ago about how much human beings are addicted to substances and behaviours. He says that by labelling a behaviour as a habit gives it a semblance of respectability. But it is as it is, an addiction.
Like any addiction something that has a hold over you requires a determination to free oneself. In the old religious terminology this was seen as the work of the devil. There are three levels of distinctions in the mental field; belief, conviction and certainty. In order to begin to unravel the grip of the addiction a person has to detach from the certainty by acknowledging that it has its power because you are convinced you have no choice. This word derives from the latin vincere – to win or overcome. When you convince yourself you can overcome the feeling you choose freedom. You realise that you are being controlled by a belief which actually has no substance.
Substance is that on which you are standing, or the position that you are taking. All along the way you begin to identify that you are in charge, you decide, you are the YOU that is upholding this position. For the position you hold no-thing can be different. Now is your Point of Power. Now is the only moment you have to change your position.