Alcohol is commonly used for relaxation, socialization, and celebration, but alcoholism and abuse are caused by many interconnected factors like genetics, upbringing, social environment, and mental health. Signs of alcohol abuse include neglecting responsibilities, drinking in dangerous situations, and continuing to drink despite relationship problems, while signs of alcoholism include needing a drink in the morning and experiencing withdrawal symptoms when not drinking. Getting help requires admitting there is a problem and reaching out for support.