Do I have depersonalization / derealization?

So 7 months ago I smoked some weed I got from a dispensary, and had the most reality crushing High I've ever had it was honestly the worst thing I have ever experienced in the 25 years I've been alive. Anyway for the last 7 months I've had these weird thoughts In the beginning I had thoughts of this is just a simulation and weird thoughts like that but that has passed after I confronted them and told myself how ridiculous these thoughts are. I know my thoughts for example or from talking to someone I'll think to myself these are real people in the world with an infinite universe it's really hard to concentrate on what people are saying when thoughts are going through my mind like that. But the worst part about it is the emotional reaction I get from these thoughts it's pretty scary sometimes. Everyday I regret smoking that now I'm just waiting to get back to normal I'm scared to drive because I don't know how I'll react when I thought like that pops into my mind when I'm driving and I also avoid taking the bus because I don't like being far away from home now and it never used to bother me before. Before this happened I was 100% normal living a normal life with a job and everything was going great no I don't go to work I can't drive and I don't like being very far away from home. This is honestly the worst thing I've ever been through in my entire life and I just want it to end! How long does it usually take for someone who's never had depersonalization / derealization for it to go away? This was weed induced I've never had a mental illness and I have never been diagnosed with any mental illness. But I just want to make sure if this is derealization / depersonalization so if anyone could let me know that would be great. Thanks!