Based on past performance there is a strong case for skepticism of <insert psychological theory, psychometric test, or treatment here>. The brain is perhaps the most complex structure in the known universe.

In addition psychedelics are a notoriously YMMV thing. It's not like you take LSD and get a deterministic result. Every individual will have an individual experience and some can be quite negative. I have known people who had life changing positive experiences and really negative experiences that left them with PTSD-like symptoms. Set and setting matter a lot but so does the pre-existing content of your brain and I suspect your biology.