From what most of my doctors have told me, therapy is one of the most powerful treatments for BPD! I know I have benefited sooooo much from therapy and couldn’t recommend it more - I’d say find a therapist you trust first, they’ll be most likely able to help :)

Breathing exercises and practicing mindfulness. I have ADD and BPD so it is really hard but I've noticed those two things help out tremendously. Download an app like Finch. It's a self help app that is super cute and has lots of different exercises (journaling, breathe work, stretches) I hope this helps!

dbt is proven to help folks with bpd! i’m currently in the process of getting into a local dbt program but there are individual therapists that specialize in it that you can look for