Welcome,
You will start to feel physically better in just a few days. Try to eat well, drink plenty of water and juice. Those things will help you to feel better, faster.
Don't be too thrown if your sleep is "off" for awhile. That's extremely common. That should settle down in a couple of weeks or so.
Do you have a plan for staying sober? Getting the booze out of your system is important, but you don't want to be having to go through this again.
I found AA to be a great help in early sobriety, and three years later, it is a great way of life.