My 14 year old daughter is currently receiving help from CAMHS as she has severe self esteem issues (self harming, suicidal thoughts etc). so I have been monitoring her Facebook account and have come across several message threads containing very disturbing information, posted by members of the group thread (not by my daughter, but she is a member of the group - made of her peers - which is why I can see it when I am logged in as her). The messages between these other girls including information such as how many pills they have taken, how much vodka they have drunk, who has been buying cigarettes from whom, who has been stealing blades for cutting etc. The language in general is foul (c word, every other word is f-word etc) and the messages are continuing throughout the night, even on school nights. Some of the messages are very sinister, referring to 'suicide parties'.
I have tried to follow the Facebook links via my own account to report the content of these message threads to Facebook, but as I can't access these messages from my own account, I can't report them (and if I am logged in as my daughter the report will look like it is coming from her, which I can't risk her finding out).
I have the phone numbers of the mothers of some of these girls, but if I call them and they then tell their daughters that I have reported this issue, they will make my daughter's life hell (I know this from bitter experience, having reported a bullying episode previously).
My daughter has not contributed in any way to these discussions, but is part of the group and therefore exposed to their content (although I remove her phone at night so she is not kept awake by the constant messaging).
I have been in touch with the school, but there is little they can do as this happens outside school hours.
Any advice? Struggling to know what to do. Is this just a very toxic part of being a 14/15 year old girl now which I should ignore? I just feel I should be doing something about it.