If you haven't had any luck sticking to an early morning exercise routine then you may want to take a different approach.
Like any other change in our lives, it's often easier if we slowly ease into it. This means that on day one of your early morning workout routine you don't plan to go to the gym for a full blown hour long workout. Instead, plan something small and attainable like 20 lunges or a five minute brisk walk. You'll no doubt start to feel the benefits of getting moving early, not to mention the joys of knowing you've burned a few calories before it even turned 8:00 a.m. As you get used to it, you can slowly do more — eventually you may just find that it's a fabulous way to start the day and that you are able to do morning workouts after all.