^I would actually disagree with that, as in some circumstances suddenly stopping can work. I am a very black-and-white thinker and when I decided enough was enough I went from quite a high frequency of self harm to not at all and that was the time I actually succeeded in quitting as opposed to other times when I'd tried to gradually reduce it. I'm not saying that works for everyone and it was incredibly hard but just wanted to say that sometimes that does work.
Sorry for that slight tangent! Falmer, I think it's unfair that your CC makes you feel like you are the problem, you are absolutely right that not every skill will work for everyone. I think I would be quite similar as the times when I'm most at risk of giving into urges of self harm is when I'm feeling very overwhelmed and panicked, and soothing/calming things would just get me more worked up. Have you tried the TIPP skill? If not, you can read more about it
here; might be worth a try. I find the 'tip the temperature' bit most helpful, but haven't really tried the others.
Have you ever found anything even a little helpful for managing urges? Perhaps your CC would be more receptive to helping you find different strategies if you could go to her and explain which things you found unhelpful and why but that there was something that seemed more helpful and you wondered if she knew of any other thing like that. Not that you should have to go to such lengths to prove that you're trying, but maybe doing so would help her realise that you genuinely have properly tried the things she's suggested.