A good starting point would be a ‘class’. On the first of each month a class begins in this forum. The class is made up of folks who have decided as you have that they need to leave drinking behind. So tomorrow look for the class of August 2018 to form. Jump in as others will and find support as well as offer support. Also there is a ‘weekender ‘ thread that starts, also in this forum, each Thursday I think. It is a great informal place to jump in for immediate support if you need it over the weekend. Just pop in and introduce yourself. You will be welcomed by some of the regulars that keep it going. Finally, another starting point is in the newcomers daily support thread forum called the 24 hour thread. It is where you can join others and make a commitment to stay free of alcohol for the day....not worrying about the next day yet. Just focus on the day at hand.
Look around those threads and you’ll get a feel for how they work.
Wishing you the best day.