What's the absolute worst drug to take?

EDIT: Please stop DMing me about suppliers and how to get into drugs, I said I don't want to get into drugs and I mean it. Thank you for being respectful in DMs, but if I wanted to get into drugs I would've asked something like "What's a good drug for starters?" and not "What drug causes you the most awful experience you'll ever have in your life?" I can't stop you from DMing me, but I should probably let you know now that I won't be giving you a response. Thanks for reading.

I don't take drugs, I'm scared of getting an addiction because withdrawals sound awful and I don't want to become dependant on something like that. But things like drugs are fascinating to me.

And I don't mean "What drug kills you?" I mean "What drug glues your eyelids open, forces you to watch the most horrific things you've ever seen, distorts your perception, reads you fanfiction with the most awful writing ever, all while squeezing your balls with growing intensity over your trip only to leave you alive to remember what just happened to you as you come back to consciousness butt naked under a bridge and currently asking some old lady to answer your three riddles."