There is no real "test" for borderline personality disorder as I know it.
Borderline Personality Disorder is a term used to describe a pattern of behaviors (some of which you identify in yourself).
Borderline personality then,, cannot be "cured" in the traditional sense, only managed better since it is part of your personality.
Dialectical Behavioral Therapy is the traditional course of treatment in the United States, but be careful about labeling yourself with this diagnosis or even in believing you have this diagnosis.
Many experts think that this diagnosis just pathologizes women and behavior that women are frequently socialized into.
I have heard other experts talk about BOrderline Personality Disorder as simply being a name for people who experienced trauma earlier in their lives and also experienced failures in their support network (meaning that you had something traumatic happen, and did
not get the support or help you needed at the time- thus the borderline pattern develops out of your attempts to get support, maintain support, etc.)
There is a lot of controversy surrounding this diagnosis. I encourage you to find a therapist who is able to either help you work through your initial trauma before you jump to diagnosing yourself.
It is easy to put people into categories without first seeing them and hearing all of their story.
I believe there is more to you than just "borderline".
Give yourself the benefit of the doubt and just go talk to a good therapist before you label yourself.
Hope this helps