It sounds funny to say it, but the most difficult part of training is staying on track. If you relax for one day, the next day it is even easier to relax. It takes staying with the training program one day at a time. As I am preparing for the OKC Memorial Half Marathon I am having to really concentrate on staying focused. And the funny part is - it's something I actually want to do.  But I know that if I do not stay on track every single day (including rest days) I will still complete the half marathon - but not as easily as if I stay with my training program daily.  If it is difficult to be consistent with something that I actually want to do - think about how much more difficult it is to do things that have to be done - but that are not chosen. To get to any goal - it will take doing what each day requires. What are you struggling with today? Is it difficult because you are looking at the whole picture? I have to look at a whole 13.1 mile run to know how close I am to tha...