[acous]

I don't know. The first time I tried acid on my own I was quite afraid of having a bad trip. It turned out to be wonderful and transformative. My second solo trip I told myself something along the lines of "just don't worry" and it turned out pretty grim. A statement like "just relax" doesn't really compute cleanly and depends a lot on the subject's state of mind.

For me the number one factor was my external environment.