Hi @OpalCalendula,
Welcome to Forum Land.
I have BPD and I have no friends or family either. My entire support network aside from my GP and psychologist live here in Forum Land. 
I am a 40 year old woman who was diagnosed with BPD when I was 19 years old. I have had a LOT of muddles since then such that now my brain is pretty much one big muddle.
There are quite a few people here in Forum Land with BPD. Actually, I should just check, when you say "BPD" do you mean Borderline Personality Disorder, because that's what I'm meaning. Sometimes people end up talking at cross-purposes around here because BPD can mean bipolar disorder to some people.
Some of us are just starting out on an adventure doing Dialectical Behaviour Therapy (DBT) here in Forum Land and you would be super welcome to join us if you want to. Let's do Dialectical Behaviour Therapy.
I'm guessing that if you have taken a wander around Forum Land, you will have seen there are threads about all sorts of things. You are super welcome to just jump on in anywhere. This is a particularly social thread: Good morning. Don't let the title fool you, there seem to be people chatting there all day long. 
I'm not sure if you know, but to "tag" someone so that they are notified if you respond to them, you need to put the @ symbol in front of their name.
I have to go and do some things in the real world now, but I am super glad to "meet" you and I hope to see you around here in Forum Land. You are not alone here @OpalCalendula. 