Here is a video of Ernie Kurtz, academic historian on the subject of recovery, principally 12 step recovery, being interviewed by William White. They discuss shame and how 12 step recovery helps treat the shame that often drives addictive behaviour.
Below is also a link to Ernie Kurtz’s book on “Shame and Guilt” which is freely available online at Ernie Kurtz’s behest.
Kurtz is interesting in asserting that some of the 12 steps principally deal with guilt whereas others help deal with the ongoing struggle with shame.
Guilt seems to be about events and specific actions whereas shame is a process of healing, of coping with and challenging a negative self schema inherited from childhood and sometimes reinforced since then.