If you've done the research on BPD and you feel comfortable with us, then you probably are. Diagnosis is based 100% on observation, and if we study ourselves, we should know ourselves better than anyone else. I self diagnosed myself a full year before it was official, and I've only seen a therapist a handful of times since. Do the reading and research, get in to DBT and meditation, and do what you can on your own. If therapists and such can help you, all the better, but it's up to you to do what is right for you. You are your best advocate. You will learn what works for you and what doesn't, and the most trained therapist can't help you if you don't want to be helped. You will be officially diagnosed eventually. Don't let that hold you from doing what you can for you now. I can attest that it was a relief and validation when my BPD was "official", but I knew in my heart and from my reading that I had it, and that was what was important in the end.