I just finished a DBT program. It was 20 weeks, 2 hrs a week & I found that intense. I can't imagine doing it for longer hours in a shorter period of time. Plus you need time to practice and integrate the skills into your life, which I had in the week between sessions. My program specified that you also had to have your own T that you were seeing at least every other week, during the program - but it didn't have to be a T from their practice, so I just continued with my normal T.

I think DBT is really good and it helped me a lot, but if I had to choose, I'd go for shorter sessions spread out over a longer period of time.

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