For most people, it takes mental preparation and planning. When you taper off, your nicotine levels drop gradually, so you may lessen the severity of withdrawal symptoms. While this is usually the preferred method of quitting, the withdrawal symptoms can be intense.
Most people get over the physical withdrawal symptoms within a week.
At first, living without cigarettes can be a physical and psychological challenge. But there are ways to cope. Stay away from temptation. At first, you may want to avoid them so you won't be tempted. Try deep breathing.