Maybe it is possible to sidestep the badness you experienced by trying to focus on scientific self experimentation like I end up doing. Maybe that's just not possible for you for neuro-physical reasons. If you ever decide to trip again, try it and let us know if it works.
Seems you don't hang out on Psychonautwiki, r/researchchemicals, MAPS.org, or any of the highly scientific drug communities going about deliberate, skeptical research in the space.
Just because you don't look for them doesn't mean they aren't there. If your only experience is hanging out with fried deadhead hippies I can see how you might reach this conclusion, but the space is broad and deep and many other types of people approach and research it.
Many of these highly respected researchers are psychedelic advocates.
Not only that, it's not uncommon to forget that you've even taken anything, and these experiences are often felt as "more real than real".
This is why it's important to do to have an experienced person you like and trust there with you. They can remind you that you are under the influence, comfort you if you need it, and keep you safe.
On some drugs, dosages, and settings, you can lose all concept of what a "face" is. Or even what "is" is. All I knew was pain, suffering, torment, spinning, and eternity.