I'm concerned about BPD like symptoms I'm experiencing

I fit the DSM-5 Criteria for BPD. I scored 88 for BPD on sanity score connected to psych central, and the borderline test connected to psych central gave me a score of 43 when 33+ is supposed to be generally severe. I know that BPD isn't usually diagnosed in adolescents but recent studies are starting to show that symptoms actually start at this age. Can it technically be diagnosed at this age or do psychiatrists still not diagnose because of all the hormones teens have? I've been reading up on it in general and especially how it presents in teens (Understanding Adolescents With Borderline Personality Traits). When I read through the symptoms and how it presents it just seems to fit so well and I feel like it completely describes me.

I am already diagnosed with severe depression and anxiety. I've been through self mutilation, suicide attempts, I need an intense amount of reassurance, sometimes I'm so angry and I can't control it (which leads to punching myself because I can't hurt someone else because I wouldn't do that), when things go wrong I automatically turn to risky and impulsive behaviors which is starting to become quite problematic, everything I feel, I feel it so incredibly intensely, emotional lability, no self esteem, and so much more.

I don't know if I have this and the chances are low, so I don't mean to self diagnose, but is this something I should be worried about or bother looking into more? I do see a therapist every other week for my depression and anxiety but I am so far too scared to mention that I feel like this possibly might be what I'm experiencing. Where should I go from here? Thank you

I think you most definitely must bring all these issues up to your therapist at your next visit. It’s too risky to self diagnose and it’s also too risky to manage this all on your own. Please speak to somebody immediately.

I saw my last long-term therapist at the age of 17 and she thought I had it, but because of my age she couldn't diagnose me. During our final session she told me about it and gave me some worksheets because she was that certain I had it, but couldn't diagnose it officially. Mind you, that was now 13 years ago, so things may have changed. The reasoning for it is because we're not thought to be fully developed personality-wise until adulthood and so it could just be that we're not mature yet, not necessarily suffering from a personality disorder.

Do bring it up with your therapist though for sure. Even without possibility of a diagnosis, there may be things he/she can do to assist you with the symptoms.

You could ask your T about DBT copping skills training. I think those skills should be taught as a general school course cause everybody could use them in modern life. They have things like being present in the moment which is helpful for anxiety too.