Backstory (you can skip this part)- when I was 15 I self diagnosed myself with BPD and my psychiatrist at the time did agree I show the symptoms but obviously I wasn't diagnosed to to being a minor. By the time I turned 18 I didn't feel like the symptoms were bad enough to say I have a disorder and never got diagnosed or wanted to or even thought about it much. I'm 19 now, things were really bad lately and while rewatching crazy exgirlfriend when they talked about the BPD symptoms it felt close to home. I'm not rushing to self diagnose, so I just came here to hear people's experience assuming it will seem like most people have it way worse than me and I'll end up deciding my case is not bad enough to say I actually have the disorder but I relate so much that I just cried for an hour not knowing how to feel. 

The important part - The thing is, I have a psychologist and a psychiatrist, I get mental and medical treatment, and I'm 100% aware of my issues, so will getting diagnosed really change anything? Should I see a professional that specializes at BPD? 

Were you treated before being diagnosed and did the diagnosis change anything? 

Any all input os welcome :)