When planning training the emphasis should not be on what you will do, but rather how your body and mind will react to what you do. The goal is not to fulfill training, but to elicit a positive adaptation in your body and mind through training.
Keep at the fore of your mind the goal of training, be it to get faster or to become fitter. Too often secondary means to the goal become the goal itself. For instance in an effort to become fit one may deem low weight important which then becomes the sole concern often at the expense of the true goal, health and fitness. For many athletes attaining a certain number of training hours is important to becoming faster, but when accumulating training hours becomes the goal, it is often at the expense of actually becoming faster. A good motto is: Train, Don't Strain. In other words, do only what it will take to reach your goal - not more, and not less.