Continuing to pray for God to give you strength and provide the relief to get you through this first step.
Alcohol is a potent poison and withdrawal often causes severe anxiety or panic. Here is a book that I recommend often to patients and friends/family dealing with anxiety disorders. It's very easy to read and often very helpful. Understanding the physiology is a great way to reduce symptoms:
Once you are through this, and you will get through it, I can't emphasize enough how important it is to find a support group. Many churches offer recovery meetings, and AA is a tried and true alternative. Don't forget this low you are in and commit to never getting there again... whatever it takes.