What's the best way to ensure you get a great workout? By eating well!
What you put into your body has a direct effect on how much energy and stamina you have during your workouts. The next time you don't feel your best in the gym, check to see what you've eaten. If you've been eating food that doesn't have the nutrients you need to train hard each day, your workouts will suffer.
Keep that in mind as you move into the last week of the Back to Fit trainer. There's no reason to quit early!