TP, I don't know about a plan as such, but I found the key to quitting was avoiding, substituting, and deep breathing. You can prepare by foreseeing stumbling blocks and being ready with strategies for success.
For instance, many As find the evening is the most tempting time. So you might plan to substitute soft drink or tea, go for a walk, eat early, go to bed and read a book.
Avoiding social occasions that involve alcohol is another early recovery plan. Also avoid stressors like fatigue, hunger, thirst, by having a bag of snacks nearby, carry a bottle of water, get to bed early.
Deep breathing can relax you out of cravings.