Welcome to SR and this great supportive forum you stumbled upon today. There is a reason you came here and I believe its because you are not a quitter. You will get it and it just might be this time.
I gave up drinking many, many times before I came here only to break those promises and drink again. I found this site in May of 2008 and I thought, "Okay, here we go again Sarah." I thought why would this time be any different, but I read and read and read about people's experiences and their struggles and I thought guess what they are or were standing in the same shoes as myself. I identified and through that identification I found hope.
There is always hope and you will not lose if you cling to that. You are NOT a failure. You are a person with an addiction that is struggling to find a way to recover. See if SR is it for you or if you need more face to face there are programs out there.
DO NOT GIVE UP!! DO NOT CALL YOURSELF A FAILURE!
You can do it. I have faith.