Ask yourself if you still really believe you are unable to use the behaviors you used to depend on, and if you are unable to control them at all and are really finished with them. Then, ask Hashem to help you stay clean today. I never ask for His help to tomorrow. (Ok, really I do because I'm not all that healthy, but I usually quickly correct my mistake and ask for only today!)
Take Hashem with you through each step you take. It'll be OK.