Can i take 1mg of ativan 24 hours after consuming alcohol?

By 24 hours out all the alcohol is out of your system. I would not worry about a conflict/reaction.

You can, however both alcohol and benzodiazepines are at high risk for habit forming and use of alcohol should be reduced in order to protect sleep. Talk to your doc about goals going forward and proper ways of managing stress. The combo benzos alcohol is unhealthy in the long range.

Do not consume alcohol. Alcohol is a poison that never did anybody any good, ever, so stay away from it. It will destroy your brain cells, facilitate development of cancer in many organs, including breast, cause hepatitis, cirrhosis and pancreatitis etc. There is no safe level of alcohol intake. Quit while you are ahead.