^Actually platypuses are not asexual. There are definitely female platypuses, but they don't do meth. They are also venomous so you should stay away from them.
But (OP) if by any chance you were actually the one doing the meth and you were just misguidedly thinking referring to yourself as a duck-billed platypus would somehow offer you some sort of legal protection (which I doubt it would, and it's probably illegal to own a platypus anyway), well then you should drink something like coconut water to replenish your fluids and electrolytes, eat something healthy, take some supplements and try to get some sleep. There are some threads on here on things to help with a comedown but I don't know what you have on hand. Relaxing/sedative supplements like melatonin, l-lysine, magnesium, valerian, kava, etc would all be good.
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