In the midst of horrible hangovers, I am sure I said "I will never drink again" maybe a thousand times.
But I never seriously tried to quiet until I joined SR, two years ago. I chose the name "firstymer", because it was my first serious attempt at quitting. I haven't had a drink since the day I joined here.
My point is this: If you have committed to stay sober, you may fail. And if you do, you figure out why you failed and adjust your plan. But, just because this may be your first serious attempt to quit, it doesn't mean you are destined to fail the first few times you try. I am living proof, sober proof, of that fact. And if I can do it, trust me, anyone can do it.