"great difficulty in holding on to a stable, consistent sense of one's self: "What am I?" these people ask. "My life is in chaos; sometimes I feel like I can do anything—other times I want to die because I feel so incompetent, helpless and loathsome. I'm a lot of different people instead of being just one person."

The one word that best characterizes borderline personality is "instability." Emotions are unstable, fluctuating wildly, often for no discernible reason. Thought processes are unstable—rational and clear at times, quite extreme and distorted at other times. Behavior is unstable—often with periods of excellent conduct, high efficiency and trustworthiness alternating with outbreaks of regression to childlike states of helplessness and anger, suddenly quitting a job, withdrawing into isolation, failing."

This hits too close to home.
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