I have BPD, am not yet ready to out myself on MN under my own name as I have read so very many negative/abusive comments about people with personality disorders on the site (saw someone with a PD referred to as "sub-human" once and that made me leave for several weeks!)
I'm in therapy and it is helping a lot - the psychologist I am working with says my level of acceptance of my condition means that I am am making some very rapid progress. TBH, the diagnosis was a massive relief to me!!! All of a sudden the reasons that I self-harmed, drank too much, attempted suicide, sabotaged pretty much everything I put my hand to, had extreme abandonment fears, had a horribly out of control temper (with everyone but my children!) all made sense.
I am lucky, very very lucky, in that I have a dh who has known me since I was a teenager (well we both were) and despite all my best efforts, he is still madly in love with me and has even been able to help me see that a lot of the things that he loves about me (I am passionate about many things, for example) are actually traits that have developed out of my BPD. We now occasionally even joke about me having a "borderline moment"! And recently when I got some very upsetting news and managed a whole day without calling him to come home, or losing my temper, he came home with a huge bunch of flowers to celebrate a borderline-free day!
I still struggle with my self-esteem, and with knowing who "I" am. Practically no-one knows about my condition as I have heard too many stories of people who are badly hurt/ignored/rejected (again - early rejection and abandonment are common features in BPD) when they reveal their condition.
I have found antidepressants to be a helpful tool in managing mood and have been given antipsycotics twice for agitation (a month at a time each). I see my psychologist fortnightly.
Interestingly, BPD is 4x (I think) more common in women than men.