I see this sheet you filled out as being a Rehab source and its a good start. The problem isn't the drugs, its not the addiction, we have a disease. We have denial, reservations, and untill we look at all aspects of our disease we are in trouble. We are powerless and our lives had become unmanageable. Just because the drugs are gone we don't become mangeable. Looking at all manifestations of our disease is important. Step one is a very important step. My suggestion would be to go to meetings, get a sponsor, and get the literature and a Step working guide and work the steps with a sponsor, The "We" that was mentioned earlier.
I don't know much about the statistics about relapse, I will tell you that if you have a reservation, you are doomed!! If you don't accept this disease, recovery will be very difficult! If you are not honest with yourself, nobody else will know the truth either!! Surrender is the key for this process to take hold, and there is no substitution for surrender.
Peace,
Todd J.