The KEY to keeping your New Years' Resolutions is easy...keep them SMALL and keep them simple! First...KEEP YOUR GOALS SMALL! You're not gonna do a 180 just like that. So if your goal is to lose weight, don't start off by wanting to lose 20lbs...start at 5.
Next you wanna change ONE BEHAVIOR at a time! If you have a lot of unhealthy behaviors and habits, don't change it all at once. You'll fail. Change one behavior...then when you're comfortable, you can move onto the next...but remember...1 step at a time!
AND DON'T BEAT YOURSELF UP! If you're trying to quit smoking but you cave and need one, its ok! Just do better the next day!