"Bad trip" is a huge space of possible levels of bad. I've had tons of uncomfortable trips but none were "bad" enough to deter. Each person has a widely varying

"Bad trip" is a huge space of possible levels of bad. I've had tons of uncomfortable trips but none were "bad" enough to deter. Each person has a widely varying level of comfort with discomfort and resolve to keep trying. Same thing with extreme sports or any voluntary exposure to discomfort with perceived gain. Just like extreme sports each painful experience also has a non-zero risk of deterring you forever and no longer seeming worth it. Whether you're willing to keep rolling the dice is up to how much you gain from each experience and how you integrate it.