If anyone had the definitive answer to this, then nearly no one would be smoking any more. Most people who are smoking want to give up and many have tried and failed. This does not sound like a positive start, but it is worth learning from this who have failed, perhaps yourself among them to see what you can do to make it successful for you this time.
One of the most important things is to have a good reason why you want to give up. Write that reason down and stick it somewhere that you can see every time you think about smoking, this might be on your purse for example, when you go to pay for the cigarettes.
It is good to have professional help. You can get this from your GP. They will talk you through all of the options available as having some patches, gum or other similar products does seem to help many people and they will be able to give you those and explain how to safely use them.
Having support from family and friends will also help and they might remind you not to smoke, when you are tempted or maybe even forget that you shouldn’t be. So tell people, unless you are worried that they may not support you in your decision.
Giving in to temptation can be extremely difficult. It is good to have some tools to turn to in case this happens. Maybe someone to phone, some nicotine gum or just something else to do to distract you. There are many things that you can try, just find one that you think will work for you.
Take each day as it comes and make sure that you reward yourself for your achievement. Perhaps use the money you have saved from not buying cigarettes to buy yourself a present.
You will need to work hard at it, but it will be worthwhile when you feel healthier, save money and have a longer future to look forward to, where you will have a better quality of life.