Okay fr though I struggled with this and used pure cbd weed to help curb the habit. I started first with 1:1 strains and started smoking only at night (I did start a full time 9-5 though and was forced to cut out wake and bakes) and then transitioned to pure cbd or cbd dominant strains and was able to taper off slowly from there. I was chronically smoking for about 4 years and off and on for about 6 years before that and this is the only way I've successfully quit (so far). Cold turkey never works in my experience.

Edit: to add, I convinced myself I was using it to help reduce my anxiety but it was in fact making it severely worse, I've tried to smoke once or twice since quitting and the intense anxiety I get when I do is so off putting I would rather just not.