I did a DBT group years ago and found it quite helpful, in part because I was in a group of people who all had similar negative coping strategies to me. I found I connected more with people in my DBT group than in most other group therapy that I've done.
The structure of the group was basically as follows:
1. mindfulness exercise.
2. Discussion of the skills practice (homework) from the previous week.
3. Leaning new skill
4. Discussion of some examples of new skill
or at least that's what I remember.
Hope you find DBT helpful.
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"I danced in the morning when the world was begun. I danced in the moon and the stars and the sun". From my favourite hymn.
"If you see the wonder in a fairy tale, you can take the future even if you fail." Abba