Set a quit date within the next two weeks, so that you have sufficient time to prepare yourself without losing motivation. If you mainly smoke at work, then quit on a weekend.
Tell everyone you know about your family, friends and colleagues that you plan to quit smoking. This will encourage them to support you and keep you on track. It is a good idea to find a quit buddy who also wants to stop smoking and you can help each other through the rough times.
Anticipate the challenges and plan how to overcome them. You can deal with the nicotine withdrawal symptoms with the help of nicotine gum, patches or lozenges and find some other methods to overcome the psychological triggers. Read more at myquitsmokingcommunity