Join an exercise group and work out regularly. Sign up for an evening class or a join a study group at your place of worship. Go on more outings with your family or friends. Learn ways to relax and manage stress. Join quit-smoking programs if it helps.
Some people do better in groups, or with a set of instructions to follow.
That's fine, too. Remember, the aim is to quit smoking. It doesn't matter how you do it. Consider using nicotine gum or nicotine patches. Nicotine is the drug that is in tobacco.