When I was a kid, my mom stopped by slowly cutting back. She got to the point she was lighting a cigarette, take one puff and put it out.
It took her a few weeks, but she stopped.
I will be praying for you, ask God for wisdom!
Jame 1:5
5 If any of you lacks wisdom, you should ask God, who gives generously to all without finding fault, and it will be given to you.