I think we are FAR better off in Australia, especially if you have insurance. You have access to psychiatrists, psychologists, occupational therapists, physiotherapist, endocrinologist, GPs, Dietitians, neurologist, brain scans, heart scans/ecgs, blood tests etc at low cost. But you are right Borderline diagnosis scares many pdocs off. I would guess he doesnt want to label you so he can give you certain meds.

DBT is available here. There are quite a few places in my city that do it and I know for sure they do it in Sydney too so I'd assume the other cities would run it too. Actually I know they do it in Melbourne too as my friend is doing it there. I've done it and have been offered a huge range of treatment options. The medical doctors will not recommend unconventional or alternative treatments so those need to be sought out on your own.

I use many alternative treatments which are approved by pdocs who are proud of me for looking for myself how to cope and not completely relying on the medical system. I've even looked for support services in my area and went to weekly GROW group.

You need to seek out the treatments and not leave it all up to your pdoc and say they arnt doing anything, the pdoc is only ONE person in your team to help you get through it, you may need a bigger team for more support.

Have you ever tried anything to help yourself? Mindfulness, meditation (and dont bull, meditation works if you keep practicing and do it right), tapping, exercise, time with animals or outside etc etc. I would go on but I have to go to group now.