Over the past few months, I’ve become addicted to cocaine. I go on days-long binges with “friends” who I know don’t care about me. I’m never mean on it, but afterward I feel ashamed and embarrassed that I’ve sunk so low. I don’t have health insurance to cover rehab, and I can’t bear the thought of people realizing how weak I am. I don’t want to hurt myself anymore, but I don’t know how to stop.