I used the Samaritans which is based in the UK and I hated every minute of it. The lady didn't speak hardly at all and despite me telling her I can't sleep at night because if my suicidal thoughts and stuff, she told me I should go to sleep and hung up shortly after (it was 1am and I don't usually sleep until about 5am). I just found it all a bit pointless and I'd never phone one again. However, in terms of usefulness, somebody pointed out something before, it must of helped a bit, because otherwise I wouldn't still be here.
I know you said not to ask why, so I won't, but I am offering you to message me if you ever need to talk in confidence.