"What I'm hearing you say, Jeremy, is that you want me in group therapy, preferably with DBT therapist, in addition to working with you."

That's all you have to think about/work on right this minute.

Write out your searches and what you find, where it is (and even print out a large map of your area with where these too-far places are and plot them :-) and take it to the next session and ask Jeremy, respectfully, what he's done to find such a group for you as he wants

Presumably whatever you are doing in your life now on your own doesn't necessarily work well for you? You have tried being "on your own" and get in "trouble"? Jeremy is for therapy, during an appointment time. He wants you to get "extra" help via a group and DBT tools. With those things in place I think he's hopeful that you will have fewer "troubles" during the time between therapy appointments.