I quit about 35 years ago--best thing I ever did. For the first while I rewarded myself by buying 'stuff' with the $$ I saved by quitting.
I don't know if the craving(maybe more like an impulse) ever goes away completely but after a while such impulses become easier to ignore and let past!!
Think of the rewards--better health ( e.g. lung cap'y), more money(Fishing gear?? )
Hang in there.