I absolutely know what you are saying, Trying. This is the nature of addiction, why it is so hard to get and stay sober. To "normal" people alcohol is the problem, to the alcoholic it is the solution. The cravings do get less frequent and less intense over time, but for the first weeks and months, they are part of the process. This is how your central nervous system responds to abstinence after being conditioned to alcohol. It is not comfortable to experience, but it is temporary and normal. When you feel cravings, occupy yourself - typically they only last ten to fifteen minutes. Ride it out, this is a sign that you are healing.
Congrats on 18 days!