So you're not yet diagnosed?

Diagnosing PD's actually takes a fair bit of time if done properly - and it's usually the same process country to country. So while i'm not trying to undermine your doctor i would exercise caution until you're given a more solid idea of the situation.

There is medication to help treat the symptoms of BPD - although the effectiveness across users is debated. Have you been offered any second generation anti-psychotics/mood stabilisers? Some meds like Depakote (sorry don't know the american name) are used in treating both BPD and bi polar. So there is some overlap. Maybe you've yet to be offered the right kind or haven't been taking anything long enough to see the benefits. Either way i would do some more research as it will help in determining whether your current doctor is suitable in treating you. I would be wary of any doctor who wants you to switch medication too rapidly.

Just another heads up, with BPD the focus is less on the curative and more on the effective management of symptoms. This usually comes in the form of behavioural therapy etc Don't let anyone tell you DBT is all there is or most effective. It's not always the case. Sometimes a more holistic approach like psycho-dynamic group work is enough for people. Other times 1-1 psychotherapy is better. Again it's about reading, recognizing the severity of symptoms and learning how to respond effectively. It's not impossible. But it is hard work and therefore requires perseverance. Some people prefer to find their own way through the mire. That's ok too but i would always encourage anyone to at least try and get professional advice first.

Believe it or not there can be positives in having a PD - with BPD a lot of sufferers find themselves with a higher than average intellect, a great sense of creativity and a lot of empathy. Don't be afraid. Sometimes it's better to charge at the Bull than risk running away. Good luck to you.