Unfortunately, BPD just isn't the kind of disorder that can be treated easily through a self help approach. This isn't to say that self help resources don't exist (for some tips on self help programs, see "Self Help for Borderline Personality Disorder"), its just that none of them are intended to be used alone. Further, no one has done research in order to understand whether any of these self help programs used alone can be effective in reducing BPD symptoms.
Why can't BPD be treated through self help alone? Well, first, the symptoms of BPD are often quite severe, and because some of the symptoms are actually dangerous (e.g., self-harm and suicidality), a mental health professional is needed to track your progress.
Second, many of the symptoms of BPD (e.g., dichotomous thinking) can blur or distort the way that people with BPD see the world. Therapists can be a very helpful source of objective information when these symptoms start to interfere with recovery. Without the help of an objective professional, people with BPD can get caught in cycles of thinking that are difficult to halt.
Sometimes it is not easy to find a therapist for BPD, particularly if your resources are limited. It is important, however, to look for a therapist no matter what you circumstances are. Many therapists work on a sliding scale or provide free therapy as part of research trials. Don't assume that money is an obstacle to treatment.
Sources:
Chapman A, & Gratz K, The Borderline Personality Disorder Survival Guide New Harbinger Publications, 2007.
Elliott CH & Smith LL, Borderline Personality Disorder for Dummies Wiley, 2009.
