Best way to quit smoking is to get motivated, you need to be powerful, personal reason to quit.
It could be anything, your family, loved ones, or to lower your chance of getting lung cancer, heart disease, or other condition.
Choose a reason that is strong enough to outweigh the urge to light up.
tell your friends family and other people you are close to that you are trying to quit smoking. They can encourage you to keep going. Specially when you are tempted to light up
LASTLY CHANGE YOUR LIFESTYLE AND EATING HABITS.
good diet, which means fiberous food, juices or fruits and other healthy foods helps to keep your body fit and will help you fight with the urge of smoking.