I'm sorry that your daughter has been struck with serious mental illness at such a young age. I feel for you and your family, too, since I know it must hurt to see her hurting and to struggle to find help that will make a positive difference.

If your daughter has bipolar disorder, it may take some time to find an effective medication or medications. Just because what she's on now may seem minimally helpful, that doesn't mean other medications (or adjustments to what she's on) can't/won't.

Therapy is crucial, in my view. For bipolar disorder, learning acceptance and coping skills, dealing with stress in a healthier way, developing insight, and managing dysfunctional thinking are all beneficial. Though DBT is helpful, so is CBT, and therapy that focuses on living well with bipolar disorder. For Borderline Personality disorder, DBT is particularly helpful. DBT really focuses on calming emotional regulation.

Therapy was not immediately helpful for me. I had to break down a barrier in my mind before I could really benefit from it. An outstanding therapist can help with that. By all means, if your daughter's therapist makes no headway to help her, that doesn't mean another won't.