Hey @Lostandneedhelp ,
I can hear your frustrations. It must be so hard to have someone who clearly needs help but is not wanting it.
I have BPD. I've been through treatment and what I know is that if there isn't 100% buy-in from the person, it is very difficult for therapy to make a difference.
I read in your post that she lives with you. Does she have any responsibilities at home for which she much be responsible for e.g. pay board, contribute to bills etc?
If she is quite comfy at home, she may not see the need or reason to make any changes.
Borderlines are nearly always hurting inside. Her coping mechanisms such mixing substances are most likely a way to numb the pain.
I'm speaking from experience. It was not until I was in my early 30s that I was finally ready for treatment. It had to come to a point where I was sick of myself.
Unless she sees the need to change, it'll probably be super hard to get her to engage in therapy.
As for medication, with Safe Script/Real Time Prescription Monitoring, pharmacies are held liable if they provide more medication than she is entitled to. The pharmacies have access to records of who gets what. https://www.health.gov.au/our-work/national-real-time-prescription-monitoring-rtpm
Please look after yourself. I hear it is hard for you. You may be interested in Topic Tuesday // Supporting loved ones living with BPD // Tuesday 25th January, 7pm-8:30pm AEDT