Her insulation from consequences really is a problem. I guess in a macro sense, the consequence for her addiction (and addiction-related flakiness) is that she won't book good jobs, but as long as she still has money, that might not bother her so much.
And if she's not using again, then sleeping until 3 or 4 kind of suggests that she's depressed, so maybe they should be dealing with that with a therapist rather than a life coach with a deck of word cards?