I used to be a smoking cessation facilitator (bless the NHS for their job titles). One hint I would give is that whenever you want a cigarette eat something healthy like a yoghurt, apple or other food that you want to eat as part of your diet - sort of using the craving to increase your healthy eating!
Eating something means your body and brain get something that fills the feed me craving that wanting a cigarette mimics. This is why we tend to gain weight when quitting, the have a fag signal is identical to the eat something signal. Same chemicals, same part of the brain, same need/craving.
Fortunately the drink something signal is also the same. Some clients were very successful using a straw to drink from - they could twiddle the straw and drink through it too so both the do something with your hands and feed me habits were solved.
I could go on and on, sorry. But I would be very happy to help if you feel the need. Otherwise just ignore me