I urge you to please, make New Year Resolutions that you and your child can keep. There is no sense in making promises that you and your child can't keep. Just promise one thing each that you can change and a realistic goal. Your child can live and do by your example that you set. Your child will develop good habits by doing so. Also it will bring your child and you closer together. For instance, my son, when he was age 13, made a New Year Resolution about doing better time management;he made a complete schedule from the time he got up and went to bed and he lived by it and he still does as a young adult. I promised to walk more(I had an injury) and I still do until this day.
My son and I made a New Year Resolution this year that we would both make a new productive website and we both did.
A very Happy and a very Healthy New Year!