Ive smoked for about 29 years and have been half heartedly trying to stop for the last 4 years. I'm two weeks in which i know is not long but so far is going really well. I'm using lozenges and gum and what's working for me is:
i set my alarm for 30 minutes before i would normally get up, chew up a 4mg lozenge quickly and swig it all down (they taste horrible) with some water then go back to sleep till my normal wake up time. By then the nicotine is in my system so i do not want a cigarette with my first coffee.
i try to condition my brain so then when the urge comes i think i want nicotine rather than i want a cigarette - i then chew 4mg. gum
I made a list of small jobs that need doing - when i get the urge i go and do a job on the list to take my mind off it.
The week before i stopped i got back into the gym and started running again (more of an awkward looking breathless trot that week - i avoided a treadmill opposite a mirror

), the improvement from that week to now is both noticeable and motivating. try and think of other things to do the week before you stop that can give you a positive comparison when you have stopped.
If i go out i will have a lozenge before i go and maybe one when I'm out so i have no cravings if around smokers.
I made a small credit card size list which i carry in my wallet. It says 'i want a cigarette now because.. and then has (rather sarcastically) all the bad reasons eg - smelling of tobacco makes me attractive or i like looking older than i am
On the other side it has reasons why i will feel good about resisting the urge to buy some. By the time i have read the card the craving has already diminished.
I am using about 10 lozenges/gum a day at the moment - using the swig option though i would suggest lozenges so that chewing gum (not attractive) does not become a replacement habit.
Its early days but every day i notice a difference and feel and look better. The above is working for me - so far, so good......

also - the other thing i intend to do in the next week or so is to see a stop smoking hynotherapist. I want her to alter her usual session to focus on getting me to subconciously dislike being around smokers and smoking. I just see this as a reinforcement and aid to my current strategy