Slowly phase out an unhealthy habit. Do you drink two cans of soda per day? Try drinking just one. After a week, try drinking one every other day, then once per week, then once per month.
Begin introducing new habits. Do you know when is the best time to eat fruit? First thing in the morning. Why? It will kick start your metabolism as your body only takes half an hour to digest it. So try eating an apple or a grapefruit first thing each day!
Keep at it. I said habit, right? Well habits take awhile to form. So keep eating right, exercising, and working toward your goals each day. If you fall off the wagon, get back on. It’s that simple.