If you keep failing to quit drinking alcohol, the most important thing you can do is to use a DIFFERENT method of quitting than what you tried before (see: Overcome Alcoholism by Changing Your Strategy).
Did you try to quit cold turkey, and you were alright for a few days before giving in to temptation? Then try cutting back a little bit at a time. Oftentimes we fail because we’re trying to do too much at once, instead of simplifying the process by taking a baby step towards sobriety. Read more Do You Keep Failing to Quit Drinking?