Diagnosed Dysthymic

Hello everyone,

I have just been released from an inpatient unit at the local hostipal, and have been diagnosed (early onset) dysthymia, as well as marijuana abuse and "marijuana intoxication" (what a joke).

Now, I know that ~50% of dysthymics (and around the same about of clinically depressed) have co-morbid personality disorders, and have always been suspecting myself of falling somewhere on the cluster B, PD spectrum.

Knowing this, what should I take as the next step in therapy? Is there anything that I should get an explanation on, or anything worth diving into, regarding my heavy suspicion of having a PD?

And beside possible associated features, what do you all find helpful in therapy, just for dysthymia/depression alone?

Thanks