When you set a goal for yourself, make two sets of plans.
The first plan is for the short-run or your day-to-day plan to help you structure your days towards achieving that goal. The second is your long-term or end goal.
To make your overall and big goal achievable set realistic goals or small goals for your day to day plans. For example, if your main goal is to incorporate exercise, but you have never exercised before, try setting the goal that you will start to exercise twice a week for 15 to 20 minutes. Increase the number of times you exercise per week and the exercise length time by five to ten minutes. Always consult with your doctor, if applicable, before starting any movement or exercise routine. Set the plans, goals and just do it. You can do it!