Hey ATime4Change.
I just joined today as well as my night last night was the final straw. You will find that the people here are warm and friendly and want nothing more than to help you and support your recovery.
As far as drinking every Friday and keeping it to only that....if you want to quit why not quit altogether. It might start out as only every Friday but then it will progress back to where you are now and it's an endless and vicious cycle. I have told myself the same thing multiple times and have finally decided enough is enough.
I wish you all the best and want nothing more than for you to beat this demon! You can do it!