Welcome wrdfrog, JamieJo and raw23!
raw23, sorry if I didn't explain that well enough. Since this is an ongoing thing you may update your goals and accomplishments as often as you like. What I would recommend is to set your goals for the week: either daily, weekly or both. At the "end" of the week (I don't like to say "end" since we're trying to keep things moving but for the sake of explaining it, it may help clear things up) so at the "end" of the week post what you accomplished for that week in the "weekly accomplishments" section as a reminder that you got something done. (Leave your past week's accomplishments until the next week.) If you have daily goals you may post what you accomplished in the "daily accomplishments" section on a daily basis (no need to be restricted by weeks here as daily = ongoing.)
What might help make this challenging for ourselves is to push ourselves. If this week we did 30 minutes of exercise on Tuesday, maybe next Tuesday we'll aim for 35 minutes. Or if just getting up the energy to exercise at all is an accomplishment is reason to celebrate, then by all means celebrate it in your accomplishments section and challenge yourself to maybe do it again tomorrow.
It's really up to you
how to use this space but the general idea is to
just stick with it. That's the whole reason behind "8 days a week" as opposed to 7 days. I tend to get totally off plan on the weekEND (after all, I've been good all week) so if we get ourselves thinking that there is no end but only renewed commitment and take it in baby steps, with daily and weekly goals, hopefully "falling off the wagon" will happen less and less (or not at all).
I hope that helps.
(PS. I updated the wording on my format from "Daily Accomplishments This Week" to "Daily Accomplishments" to hopefully clear things up a bit.)