When I was drinking, I had to have tons of caffeine every morning just to get out of bed, too. I too felt anxious all the time... I drank to make that less, but the only thing that stopped it was quitting drinking. I never realized that it was the alcohol that made me that way when I was drinking.
It is very important in the beginning to take thing ONE DAY AT A TIME. (Sometimes, it's one moment, one hour, or another small chunk. Can you make it one minute without drinking? Yep you sure can! Then you move on to making the next minute without drinking, too.)
Start by just saying, "I am not going to drink today." And then stick to that.
Tomorrow isn't here. We don't need to worry about it.