I was in a year-long class, with group interaction, and had weekly follow-up with my T about DBT skills and group/class. In my experience with the group/class, most of the members had trouble being in groups due to the problems for which we all needed DBT in the first place. We were all in the same boat and just when I'd think I was the only one who didn't have it together, someone else seemed to be falling apart. You'd do just fine.