Do you want to know the key to being stronger, more athletic, or losing weight? The key is being consistent with your plan of action. If you have scheduled 3 workouts a week for 2 months, then you have to find a way to get those three workouts in. If you are on a nutrition plan you must at least be 90% compliant. I laugh when people say I don't understand why the plan is not working for me and they are missing a ton of workouts. They also are not following their meal plan. Instead they make excuses why they can't do things. One of the big things that I push in my speed camp is that the kids should never make excuses.
My challenge to most of my clients is that I guarantee success with the programs I design if my clients are consistent with adhering to the program. I was able to build a good amount of stength and muscle off of poorly written strength programs in college because I was consistent. The best thing I can think off to keep consistent is to keep a folder and record your workouts. How can you tell if you are on course if you have no record of what you are doing? I promise you that if you would committ to two months of focused effort you would be amazed at the results.