By getting rid of the smoking habit, you can avoid a preventable illness. And yet quitting smoking is hard because it involves changing habits and breaking the physical and psychological dependence on nicotine. Nicotine addiction has been compared to dependence on heroin or cocaine, so it can be difficult for someone to stop smoking without help. Nicotine withdrawal symptoms like cravings, irritability, anxiety, depression, and even weight gain can make it hard for someone to stay motivated and stay smoke-free. Discover all the smoking cessation alternatives and download the UpNow self-hypnotherapy app.