I think what you are feeling is perfectly normal for starting out. It took me about a month to feel halfway normal when I quit the first time. If you stick it out it will eventually pass but you have to give your body and brain time to heal. Read the threads. Post if you are feeling the urge to drink. Eat ice cream if you have cravings. Sleep, drink water and don't get too hungry. It's amazing how much the truly basic things help so much. We neglect them in order to drink more alcohol. Pay attention to them now.
Welcome to SR. You can do it one day at a time.