Dr Oz suggested taking a month-long break from alcohol, calling it the January Dry Out. No matter what month you do it, going 30 days without alcohol can help cleanse your system and maybe even help you lose a few pounds.
However, don't let "like a girl" be an insult. Show them that doing something "like a girl" is as good, or better, than doing it "like a man". Gender doesn't define strength, stability, or intelligence.