Building a sustainable workout routine starts with setting realistic goals that align with individual preferences and lifestyles. It’s essential to create a balance between different types of exercise, including cardio, strength training, and flexibility work. Consistency is key; schedule workouts at convenient times to develop a habit. Mixing up routines to prevent boredom, along with tracking progress, helps maintain motivation. Finally, soliciting support from friends or fitness communities can reinforce commitment to a sustainable plan.