I want to try smoking weed again.

Weed is legal in my country, you can buy it once you’re 18 in coffee shops. I’m turning 18 soon and want to celebrate by buying and smoking. Heres the issue, i stopped smoking about a year ago because it gave me real bad derealisation since then I haven’t smoked at all. I went from smoking a couple times a week to not smoking at all.

Is there a way for me to try smoking again without getting really bad derealisation like a small dose or taking it slow? And does anyone have any advice on smoking again after a long time of quitting?

Before you say i shouldnt smoke in general, i know! I just want to celebrate becoming 18 by finally doing things i’m legally allowed to do. I’m also going to buy a lottery ticket, alcohol etc.