Way to go on day 4! Stay strong - it really does get better. Imagine how nice it will be to wake up tomorrow without a hangover. Each day you don't drink will make it a little easier to say no the next time. It's hard dealing with the mental stuff, but it's worth it when you finally see those drinking thoughts fade away.
Get through it an hour or a minute at a time if you have to. Sending prayers and hugs....:ghug3