Wouldn't that apply with any destructive behavior? Addiction presents a different issue but abuse (mental,physical,verbal), infidelity, financial irresponsiblity, poor parenting, all would require the behavior to be addressed as well regardless of the self improvment required.
M22,H45,W45 S21/18D12 Retain faith that you will prevail in the end, regardless of the difficulties and at the same time confront the most brutal facts of your current reality, whatever they might be.