How many times do we make resolutions for the New Year only to forget about them within a few weeks? Through the years, I have resolved to drink wine only on weekends, stop smoking, stop cursing, eat less, exercise more, eat less chocolate, less pasta, less bread, etc. In truth, the only one I have stopped is smoking, over twenty years ago. It was the best resolution I have kept.
Anyway, my best advice is to do something practical, duable, and realistic. Smoking is very unhealthy, so quitting is a good one to work on for the new year. You'll stop weezing, stop smelling so badly, and feel better. Exercise can boost your energy level, help you lose weight, and have overall better health. Instead of dieting, think about eating healthier. Buy more fruit and vegetables, have a salad before every meal, drink a glass of water before dinner and while you're eating dinner.
Work on things you'll do instead of things you want to stop; for instance, spend more time with friends and family. Spend more time meditating or praying. Spend more time being good to yourself. Love yourself, so you can learn to love others.
Happy New Year!