I’m in the same place as you, not sure about diagnosis for Borderline.

True, it is unnerving to think you may have something but not know. I’ve come to not care.

First of all, the treatment/solution for it is the same regardless. If doing DBT helps you then do it.

The big issue is how debilitating is what you are experiencing? I’ve hit some pretty hard lows emotionally and I’m going to keep that trauma in my mind to avoid getting myself to that place again.

The things like mimicking others... I think everyone does that a little. The question is how much does that debilitate you or cause you suffering?