Background: My dsis suffers from depression, an eating disorder and is alcohol dependent.
She quit her last job about 6 months ago as she wasn't coping.
She has just managed to get her benefits sorted now and had decided she was going to take some time out to get counselling, try to address the various issues (the alcohol being the one that probably needs addressing first).
Yesterday she got called for an interview for next week. The role is 10k more than her previous one. It's a fairly long commute (about an hour and 10 minutes).
She is considering going for the interview!
AIBU in thinking she's only going to land herself in hot water, probably won't cope, will end up unemployed again, end up with a dodgy CV and should be focusing on getting herself well before she even considers a return to work?
For reference, she has literally been signed off as unfit to work indefinitely by Universal Credit.
She is still drinking almost all day long and maybe won't get the job anyway, but if by some fluke she does get it, will it enable her to turn her life around or is she setting herself up to fail again?
She's asking me what to do and I'm sort of asking her how does she realistically see it panning out. Her response is that the offer is too good to refuse and that she might manage it.
What advice should I give her? She can't even seem to stay off alcohol for one day to prep herself for the interview. 
She's a lovely competent person and I have no doubt she could do this role with her eyes closed, but is she potentially going to damage her health more? Yes, maybe it could be the making of her, but I'm not sure what to advise?