One of the main ideas of the Whole Life Challenge is that the Challenge is a period of practice. One of the best ways to see how well you've learned the skills and ingrained the habits is to take an "off" period. Which is why we recommend letting the effects of the Challenge demonstrate themselves in the period between Challenges
We think of it as "on" and "off" seasons. The "off" season, when you rest, is actually where a lot of growth takes place. You can think of the Challenge, or the "on" season, as a time when you prepare the soil, plant the seeds, and tend the shoots. The "off" season is when you grow in the water and the sunshine.
That said, if basic accountability is something that really works well for you in your daily life, you can download this spreadsheet that you can use daily between the Challenges to track whatever you like. You can stick with all of the 7 Daily Habits, choose only a few, or even track non-Challenge related things that interest you.
The most important thing to remember, though, is that we all need rest. This sheet can help you as a daily reminder of what you are committed to doing and having in your life, and a good practice to experiment with, especially between challenges, is to not let the daily tracking run all of your choices. You've done a lot of good work and we'd be willing to be you'd be surprised how well you can do simply living your new life!