Freaking square. Is fear of triggering your latent schizophrenia part of it? Parents, job, guilt. Many possibilities. Sometimes people just never really had good reasons for doing drugs in the first place, they never developed a cohesive logical framework, and they stop for the same poorly pondered reasons. Or due to to most basing their views on their own experience, because they used drugs like idiots, did no research, had no understanding of human physiology, of the brain, unprepared, bad set or setting, excessive doses for moronic reasons, untested drugs, not knowing how to identify drugs and counterfeits, became addicted, bad experiences, leading to problems with other people etc., their perception is that nearly everyone else is the same, and unfortunately they're right, but they'll be biased against believing that you are capable of being responsible and knowledgeable, superior to them; people have been shown to consistently overrate their intelligence and knowledge/level of understanding.
What? Didn't you just freak out screaming with no recollection of what occurred? Did you have another experience where you broke through and had a profound experience? How did you get all you needed out of it?
Oh yes,
you have achieved development to the pinnacle of perfection, where no further can be gained. A sage of wisdom.
You should totally try a mescaline LSD combo. Have you ever tried mescaline? It seems to be considered one of the psychedelics least likely to give you a bad trip, along with often providing a large mood boost, euphoria, and something almost like a light MDMA feeling. I've seen it mentioned that mescaline and LSD combos can be the most visual of all, and beautiful.