I wish you luck with the professionals.... (I'm also in the UK and frankly have not been impressed...). Keep posting here, we're here to listen

Personally I think it's quite possible to have Avoidant pd and borderline traits. I haven't read enough of your posts to form an opinion if that's what I think you have I think it's likely that borderline pd is helped more by the NHS (in some cases) but I'm no expert (I completely distrust them after a couple of appalling experiences )