I've had this disease for almost 10 years. I used to smoke cannabis a lot until 4 years ago. I'm 35.

[Teens who smoke pot at risk for later schizophrenia, psychosis](https://www.health.harvard.edu/blog/teens-who-smoke-pot-at-risk-for-later-schizophrenia-psychosis-201103071676) \- Harvard.

I started smoking cannabis when I was 13. Started out not smoking a lot but smoked more and more as the years went by.

I can't stop thinking I caused this disease in me. I feel bad about it. 

I've been psychotic 3 times. Every time I was smoking cannabis. I don't miss smoking it.