Hi there. Just looking for some general advice.

I've struggled with mood issues and depression for years, beginning as early as fifth grade where I first mentioned suicide to my parents.
 

In middle school I received a vague diagnosis of bipolar disorder type two, and I began treatment.


For the last year or so, I have become more and more unstable both in thoughts about myself and my relationships with others. My depression also became more severe, and I began self harming.


Wondering if I might have been misdiagnosed after some research, I brought up the issue with my psychiatrist after feeling a deeper connection to BPD than BP type two.


Well, he recommended a psychologist to me who does psychological testing. After quite a few tests, I got quite the whammy of a diagnosis. Yes- I did have bipolar disorder. But- I also had BPD, GAD, and dependent personality disorder and negativistic (also known as passive aggressive) personality disorder.



I'm still on the meds I was before my newest diagnosis- Lamictal, Zoloft, and Xanax. I also just started taking a very low dose of Amitriptyline but that is more for my very severe IBS. 


I also really liked the psychologist who did my testing, and he has offered to do therapy for me which is a relief. He is a psychotherapist and said he will be incorporating parts of DBT and CBT into my therapy.


I don't have any very specific questions, but I was wondering if any of you have advice for a teenager on the verge of graduating high school coping with the intensity of BPD, in addition to several other mental health diagnoses. I think I'm on the right track, but I want to know if there is anything else I should be doing. 

Let me know if I have left anything important out. 

TL;DR New to BPD, not new to mental illness. Comorbid. Teenager. Advice?