[Too Shy]

Hey everyone. There's kind of two questions here, but I figured one thread would be easiest.

A couple of weeks ago I had a very very bad night involving the police, uni, and then hospital which resulted in an 'informal admission' for the weekend on the basis that if I didn't stay informally I would be kept in on a section. I was there from the Friday afternoon until Monday afternoon, and now I've been referred to the 'First Response and Intervention Service' in my city for an assessment with a social worker on Friday.

So my first question is does anyone know what a 'First Response and Intervention Service' do? I'm assuming the first session will be the same kind of thing as anywhere else, just background information and history, but apart from that I have no idea and Google doesn't come up with much, so just wondering if anyone has any experience of anything similar?

My second question is about confidentiality (for adults). I know that confidentiality can be broken in circumstances if you have a specific plan and say you're going to do something etc. But what does this involve? I am in a very bad place in my head sometimes recently and sometimes I am very close to just doing something. My counsellor know I'm struggling because I've talked about going with my mum etc a lot recently, and he's said to call him anytime I need him. But if I do have a bad night and phone him and say 'I want to kill myself' or I need to harm myself etc, what happens? Or if I tell him the thoughts/plans I am starting to get? Who is confidentiality broken to?

Sorry this is so long, hope you're all ok