Because the drive to get in shape can wane over time, the American College of Sports Medicine offers the following recommendations to help you stay motivated: set specific goals; develop a realistic action plan; use environmental cues, such as placing a gym bag by the door or setting reminders on your phone; have fun; make exercise convenient; record your progress; build a support network with friends or family who can work out with you; reward yourself with flowers, a movie, or new exercise clothes; and believe in yourself.
American College of Sports Medicine, February 2018