A lot of people seem to compartmentalise their addictions - 'I'm ok on x or y but not z.'
I prefer the holistic approach - it matches my experience...
I was the problem.
I drank or got high to fill a void in me...if z was not available, x or y would do just as well.
To really get into recovery I needed to stop trying to fill that void, and heal it instead.
That's whats worked for me...your mileage may vary, as they say
D