Not all subjects who consume alcohol are alcoholics, that is, not all who drink need treatment. However, what distinguishes them from excessive consumers is that they tend to lose control of their behavior under the influence of this substance, with frequent memory loss.
It is known that, more than changing a behavior that has become a pattern, it is necessary to change the thoughts and feelings that are at the root of addictions. But it's not always easy and it's often necessary to seek expert help!