I was diagnosed with EUPD at age 18 after a su*cide attempt and long lasting mental health issues (since I was about 9 or 10). After this, I met my current boyfriend who has seen me at my worst and my best, and has supported me and I genuinely believe has helped me so much. Not in a "favourite person" kind of way, I am not obsessed with him, but he will be honest with me and tell me when he thinks I've acted in bad spirits, which helped me recognise my bad habits (jealousy, controlling behaviours, violence, substance abuse, all of which have gone now completely!) and fix any problems I had that made my emotions uncontrollable. 

I also started doing official group DBT which has helped immensely, and for two years I took qutiapine which was like a night and day medication for me. I don't think I would be here without it. I eventually stopped taking it as the weight gain was too much and I thought it had helped me sufficiently, so now I an on no medications at all, just attending my DBT sessions, and I feel so much better. I don't want to come across as manic, because this feeling has lasted for I guess probably over 6 months? 

I haven't had an episode or lashed out since (I think) October of 2021, and even then, it was because I was punched at a bar by a drunk guy, which I guess would freak anyone out. 

I don't want to be too optimistic and say I don't have BPD anymore, cause I can still experience low moods and anxiety at some occasions, but even in those situations I can control how I react/how I respond to the situation, and try to redirect my bad emotions toward good things, like reading a book or listening to music when I'm sad, or even confiding in a close friend. 

TL;DR: I haven't had any symptoms of my BPD since last October and generally feel so much better these days after consistent DBT therapy, the right medication, and supportive friends and boyfriend.