When I stay 100% sober and 100% abstinent from all other addictive substances and processes, the devil in me is revealed, undefended and vulnerable, and can be driven out.
Whilst any addition is active, a world of smoke and mirrors is created, and, whatever the fancy words and recovery spells, nothing changes, because the devil is still holding court.
I don't drive the devil out. I can't. No point in using lots of words or having insights. Useless. The slow, complex process of 'understanding' the ego: a waste of time. It cannot be understood from within, and, even if one were to do so, one would be driven mad by the process. It can only be surveyed from the outside for its fundamental insanity; I then drop my bond to it; God is then free to remove it.
Everything else fails.