Have you tried vaping? I did one hypnotherapy session back in 2005 and stopped smoking from that day. In 2012 after a bad break up, I very stupidly, forced myself to start smoking again 🤦🏽♀️ and in 2014 started vaping, and lowered the nicotine content weekly so after 1 month I was just vaping flavours with no nicotine and a month after that, quit vaping too. Not touched a vape or cig for 11 years now.
My husband quit smoking/vaping with nicotine chewies
I've heard that replacing a bad habit with a good one helps. Or even something as simple as eating a pice of candy when you have a craving may help (this worked for one of my family members).