It is shocking how much we terrify other people when blacked out. I used to hang around with the local chapter of Hells Angles many many years ago, and they banned me from ever going near their 'clubhouse' again, because they said I freaked them out too much!!
It's good of your friends to have woken you up like this, and alerted you to your behavior when drunk. Alcohol is no respecter of age, colour, intelligence or background etc. You must take serious and immediate action now, because your life is in grave danger.
Thank you and well done for posting. You've reminded me of my own insanity. You can do this, and you can recover, with help, and with the love and support of us on SR.