17 and I'm pretty sure I have BPD I know they don't diagnose you until 18+ here are symptoms.

Extreme reactions—including panic, depression, rage, or frantic actions—to abandonment, whether real or perceived

A pattern of intense and stormy relationships with family, friends, and loved ones, often veering from extreme closeness and love (idealization) to extreme dislike or anger (devaluation)

Intense and highly changeable moods, with each episode lasting from a few hours to a few days

Chronic feelings of emptiness and/or boredom

Inappropriate, intense anger or problems controlling anger

suicidal thoughts self-harming behavior, such as cutting (It use to be really bad, now only here and there I feel suicidal, and I also stopped self harming and have been clean for almost 8 months)