I've found quite a few recovery pages that suggest the "30 day challenges" to simply no drink for a month, that's it, and it seems to work for many as having that "out" so to speak that it's only 30 days, keeps people motivated.
At the end, most will go back to drinking, only to realize they actually enjoyed being sober better, and then the true journey begins.
Though like others mention, don't look into the future with the hubble space telescope, just look into the present with your eyes and take things 24 hours a day, one day at a time. One foot in front of the other is the best way to tackle alcohol and keep it gone.