My gf most likely has BPD (havent been diagnosed cause she's in a bad home and doesn't have the money or the resources to get diagnosed). She has self harmed 3 major times in the past, when she was a teenager, and twice when she became 19 years old within the span of 2 months.

I've done a lot of research on it but obviously it's so broad, and without an official diagnosis, I cant really get in her head to understand what she's going through. She tells me she's worthless, isn't worthy of love, hates herself, and doesn't understand why I help her, despite very obvious reasons.

I tried to help her out in many ways, but she just seems to not be able to improve at a steady pace, so instead, she flip flops from hating herself and being hopeless, to being hopeful and having her mind "finally" change.

She is extremely suicidal to the point where she tweets about killing herself nearly every time she feels bad, and recently she tweeted about either jumping off a nearby bridge or taking her mom's pills, and I really dont know what to do or how to support her anymore.

I do really love her and I always will, but im really tired and it's gotten to a point where i dont wanna leave cause i dont want her to end up killing herself. I have already discussed with her that I will not leave her life, but simply stop being her romantic partner if I ever am unhappy in the relationship, and she understands.

She cant really go to a psychiatrist because she's under her parents' care, her parents don't believe in disorders or anything related to mental health disorders, she can't go on her own, and we're in a long distance relationship, which makes everything so much harder. I don't even know what step to take next, I just want her to at least develop coping skills but she's finding it hard to do anything like that in general.

Anyone have a similar experience or know what to do if they were me? I'd really really appreciate every bit of advice