I am about a third through my book on Acceptance and Commitment Theory. Some of it is useful- but it seems a little all or nothing. There seems to be even more acceptance involved than in DBT. And, taken to its logical conclusion (and I take everything to its logical conclusion), it seems to be incompatible with the use of mediation- because that is a form of trying to run away from your pain- at least if you have depression, anxiety, or dysphoric manias. If you are medicating euphoric mania, I'm not sure where that fits.
So I'm looking for the dialectic. If I can take medication, get physical activity, regulate my sleep, eat healthy, etc., because I know that this will result in less mental pain- isn't that a good thing? And can't that be integrated into a theory that also involves acceptance- and getting on with life in the face of this pain? Maybe this happens later in the book.
What I am taking away from it right now is the emphasis on not over-identifying with internal states and not over-interpreting thoughts as real. There was a term for the latter, but I can't remember it. So anyway, this afternoon, when I felt my mood start to dip- I told myself that I am experiencing feelings of depression and having discouraging thoughts. Did it help? I don't know. I also had a piece of carrot cake- I probably would not have had that if I was feeling better. But a couple of hours later I did feel some better.