To quit smoking is something not everybody can do with lot of success in the first try.
But if you see and understand the benefits, you can simplify this seemingly overwhelming task.
Just make a list of negative attributes related to smoking that you really dislike and keep that list handy so that you will be continually reminded of it.
You can make use of Nicotine replacement therapy or other stop-smoking aids to deal with the various withdrawal symptoms that curse smokers in first few crucial and most difficult days of all.
Other important methods that can assist you to ease the pain during these hard times are:

• Get a partner who is set to join your plan to quit smoking cigarettes with you.
  You may feel better just knowing that there is somebody you know who is going through the same thing may help to alleviate a lot of pain.
  
• Try placing your cigarettes in hard to reach places to make it as tiresome as possible.
  Keep them at unusual places like at the top of cupboard, in your car, etc.
  
• Delaying the gratification for long periods of time and frequently will result altering your state of mind.
  So try and put off that initial cigarette of the day, you will certainly see a change extremely soon.
  
• Once your target date is close throw away any reminder you have of cigarettes such as ashtrays, lighters, cigarette cases, and so on.
  
• Remember however, there is a chance that you may not succeed at first but you will if you identify how to try once more and not give up.
  Do not use any short cuts.
  
• Just consider, take one day at time and assure yourself that you will not smoke.
  And tomorrow will look out itself.
  
• Try finding a hobby; anything will work as long as it keeps you active and especially away from thoughts of cigarettes.
  
• Talk to people who have gone through or are going through the same quitting stage, you'll feel good about yourself as well as make yourself understand it's well worth it.
  

Always remember why you smoked and the reasons you want to quit, it will keep you on track.
Some very important advice would be to write down why you want to quit smoking, carry this list with you everywhere you go and refer to it several times daily.
  This will keep you focused and hopefully, cigarette-free.