To be borderline is to have little sense of who you are or what turns you on. At its extreme, it may mean having to turn to others for cues in order to know when to eat or drink, work or rest, or even laugh or cry. It may mean intensely embracing a person, idea, or thing one day, and having no use at all for it the next. This lack of a constant picture of one’s self, one’s values, or one’s passions is at the heart of the borderline personality. Imagine floating randomly through space without any sense of up or down and without a map to show you either your origin or destination. To be borderline means to lack grounding emotionally and to exist from moment to moment without any sense of continuity, predictability, or meaning. Life is experienced in fragments, more like a series of snapshots than a moving picture. It is a series of discreet points of experience that fail to flow together smoothly or to create an integrated whole.
—  Richard Moskovits, M.D. about BPD identity and sense of self based symptoms in his book Lost in the Mirror: An Inside Look at Borderline Personality Disorder

I’m so done