I have stepped away from it many times. Its hard to say what it would take to get me to a "never again" place with it that actually sticks. I have some of the most challenging experiences of the life with ayahuasca. There have been times where i thought, never again, what the fuck was i thinking? And then with time I am able to appreciate the experience. For me the "bad trips"have been the ended up being the ones that impacted me the most positively.