Verity,
How is the mental health care system regarding support for BPD in England? I noticed your profile says you're from the UK. Are there support groups that meet regularly for the disorder? I am from England originally (born in London), although I don't like there now, so I'm generally familiar with how the NHS works. Someone told me there are waiting lists to do DBT or be in therapy groups for BPD, is that right? You may want to do searches online for other private support groups for mental disorders, especially if you are in the greater London area.

Good luck with leaving the hospital and hope you will be able to get enough help going forward.