Starting an exercise routine for mental health involves setting realistic and achievable goals. Begin with activities you enjoy to make the routine more sustainable. Gradually increase the duration and intensity of your workouts to avoid burnout and injury. It can be helpful to schedule regular exercise sessions, just as you would any other important activity. Finding a workout buddy or joining a class can provide motivation and accountability. Remember to listen to your body and give yourself time to rest and recover, ensuring a balanced approach to fitness and mental health.