My guess is that Amy never intended to kill herself that night when she drank so much. There are much easier ways to do that than alcohol poisoning. More than likely she was trying to drown her sorrows by drinking and didn't know when to stop. She literally drank herself to death. Binge drinking can be very dangerous. If not for the possibility of alcohol poisoning then for all the dumb and dangerous things that happen from alcohol....
and hangovers.
From my days of teaching alcohol education class to college students I found a
helpful website that can help you to better understand how certain drinks (beer vs. mixed drink vs. wine), time frame (1 drink per hour vs 4 per hour), and body size (100 lbs vs 185 lbs) can impact your blood alcohol content. The website may even help you in making better decisions about safe driving habits after a night of drinking. I hope there is something to be learned from Amy's death. And if you're hurting and feel like drinking is the only way to feel better I hope you would reach out and
ask for help.