Anyone who has managed to beat an addiction albeit for a short time may wrongly believe that the addiction is beaten for life. However anyone can relapse at any time during or after the recovery period. When that happens, you never should let yourself go back to full abuse of the substance. You fall [it's a human thing to do] and you get up and stumble on [that's what winners do] and having learned what made you FALL take precautions to avoid a similar occurrence in future. Keep your eyes focussed on the goal [being clean] and you'll in the end, win.