How long it takes to get rid of nicotine dependence after quitting smoking varies from person to person, ranging from a few weeks to half a year.
When quitting smoking, the nicotine in cigarettes will cause the various organs of the human body to become dependent on nicotine. If you stop smoking at this time, "withdrawal symptoms" (irritability, dizziness, insomnia, etc.) will also appear. At the same time, many smokers are psychologically dependent on tobacco, so quitting smoking requires both psychological and physical addiction. As long as you persist, you can still quit in about half a year.