Sounds to me like it put a crack in your ego rather than a crack in your sanity.
This is what many so called psychonauts do not understand.
A bad trip can be traumatic and can revive other traumatic experiences.
https://www.verywellmind.com/ptsd-triggers-and-coping-strate...
https://www.reddit.com/r/LSD/comments/630i1g/trauma_from_bad...
Psychedelics can lead to decreased wellbeing, decreased psychological and emotional stability and decreased strength and robustness to deal with further stress and unpleasant challenges.
Medical experts use psychedelics because of their strong destabilizing effects.
Nothing is gained and much is lost if this uncomfortable weak unstable state remains.