How about interrupt it at #1 ? It is the thought of using which is the signal to intervene. What are you feeling just before those thoughts come ? Are you feeling overwhelmed by something in your current situation ? Are you feeling trapped in some way ? Or helpless? I read that addiction is only a symptom of an unlying feeling of powerlessness/trapped helplessness and for long-term soberity to stick, you need to identify the real issues driving the need to escape. Do you feel any of these emotions,Stopper ? If so, what can you change to lessen those feelings? What empowering action(s) can you take?