This may sound harsh, and believe me, I understand the motivation behind overdosing (I've done it twice before), but you're going to ruin your liver and/or kidneys if you don't stop with the overdosing, my dear. Trust me when I tell you that is not a pleasant thing to have happen. I know you don't need one more lecture, but try to find a way to distract yourself when those urges come up. That's what PC is here for.