But you haven't decided to quit drinking. You decided to quit drinking for 7 days which leaves the gate open at the end of the week and spares you the horror of actually quitting. I doubt that moderation will be successful as it has never worked for anyone here.
If you have a drink on day 8 then it will turn into 5 or 6 won't it. If not on day 8 then day 9.
If you want to change you are going to have to step across the line and face it head on.
I so wish I could moderate because then I could think ahead to the day that I have "earned" a good tooter.