I'm 24 and have never tried either most likely because of my minimal social life. I have started becoming more curious about trying one or both because of this:
“S. C. Ekleberry[38] suggests that marijuana "may be the single most egosyntonic drug for individuals with SPD because it allows a detached state of fantasy and distance from others, provides a richer internal experience than these individuals can normally create, and reduces an internal sense of emptiness and failure to participate in life. Also, alcohol, readily available and safe to obtain, is another obvious drug of choice for these individuals. Some will use both marijuana and alcohol and see little point in giving up either. They are likely to use in isolation for the effect on internal processes."[38]” - Wikipedia SPD article.
I am afraid that either one may put me in a bad place or make me more withdrawn from the world.
There is also the concern about marijuana unleashing “latent schizophrenia” as I have heard that it has caused psychosis in very rare cases. What I've read about the schizoid personality type tells me that it is somehow related to schizophrenia, but it's very clear that having a schizoid personality does NOT imply schizophrenia.
There are little things I've read like having schizophrenic family members increases risk of being schizoid and there is the schizotypy theory (
https://en.wikipedia.org/wiki/Schizotypy ) which places schizoid personality traits on a continuum where schizophrenia is the most extreme manifestation of schizotypy.
Basically I'm afraid I'll smoke weed when I'm a little more stressed out than usual and just go completely nuts. Have you smoked it safely?