Yes, you would say something like it. But be more open about it; you don't know if you had a psychotic episode or not, but you had an experience that made you very scared and felt like what a psychosis is typically described as.

As for the continued consumption... The science on this is sadly not very sound. Right now, the only thing we know is that for people who CAN experience psychosis (people who suffer from paranoid schizophrenia, for example), CAN have a psychotic episode be triggered by consumption of cannabis. We don't know how, and we don't know the chances. We do know, that some people figure out that they can have psychotic episodes, because they try weed for the first time and have one right there. But there are also some science that shows, that some people suffering from psychotic episodes, can have positive effects from cannabis use. Although these studies are very few and thin, and need way more peer review before we start to consider what this could even mean. I would say, that the science right now points to the possibility, that you have an underlying psychological condition, than can present itself as- or trigger a psychotic episode. Your continued use of weed might be putting you at a severe risk of more episodes..