Just diagnosed BPD idk how to feel about it

I was diagnosed with BPD today and I feel bitter sweet. Part of me is so relieved to know why I am the way I am. It makes so much sense and I feel validated. I always wondered why I can’t maintain friendships or relationships, and I look back and think was I splitting? Just giving up on any and every relationship so easily.

Another part of me is confused, I don’t completely understand BPD but when it’s described it’s literally explaining me. I’m scared what this diagnosis might mean, and how others will perceive me.

I start DBT next week kinda nervous