Your habit will be forming slowly, as your motivation dries up your habit is being created and will always win which is why you keep developing it. As hard as it is, whether diet, exercise it will be worth it in the end. Keep balancing the expectations vs the realism.  Really focus on how it will feel at the end.

Claire Moody is our head coach at Target Training, and you can read more about her here.  She delivers training on all coaching and numerous training the trainer courses.