Just take it one day at a time. Don't overwhelm yourself with thoughts of not drinking forever or even for a week. Just one day.. That's all you have to do.
How do you want to live today or another way to look at it how do you want to feel when you wake up in the morning? Do you want to feel good and add another day onto your sobriety counter? Or do you want to feel horrible and go back to Day-1 again? I know which one I would choose.