New Years resolutions are hard to keep and harder to become habits. Mostly people try to implement lofty goals rather than make daily decisions.
Instead, make simple decisions based on daily steps that are 'doable'. You can make a decision to walk further than the day before. You may do so many squats or pushups. Any exercise. This is the first step.
Second is Accountability. This is another reason resolutions fail. Who are you accountable to? It is far easier to commit to going to a class or a trainer who will help you and ease you into new levels. Note: if you encounter a teacher or trainer who pushes you too fast and hard - find another one. You want to make progress and be motivated to get to the next class or session.
With children, make sure the program gives them something to look forward to. A children's program must have elements of movement, structure, skills and fun - games. Expect that a good program has dynamic classes with points of high energy, moderate skills, rest and even some level of free play.
For adults: you need a program that meets you at your current level and challenges you while giving you new skills that are thought provoking. The same exercise day in and day out get boring quickly. A program that gets you moving, gives you new skills, helps you to master movements and a feeling of new ideas and concepts. A program in the martial arts also has components that teach and facilitate confidence, self mastery, developing coping mechanisms for stress, anxiety and increasing fitness levels.
Third: Come in to Cervizzi's Martial Arts - Andover to try a class. Just come to see how it is different from any other program. Meet other adults and parents whose lives have changed.
Quick story: I watched my daughter every Saturday morning. It was driving me crazy because I had trained before she was born. I went in and asked if I was too old and too over weight to do this....Sensei Diana quickly took away my hesitation. Now I have my own school, enjoy teaching and starting new people in the same manner I started.