input: [Possible roadblock] Cravings and nicotine withdrawal. Symptoms include feeling grouchy or having trouble sleeping or concentrating. [What you need to know] 
output: Here are some things that can help: Take medicine to help control the symptoms. Using medicine can double your chances of quitting.footnote 1 Get active. Start a new activity, take a class, or read a book on a subject that interests you. Get counseling and phone support. Try to avoid smoking triggers. Distract yourself with a walk, household chore, or a game.