Drinking too much alcohol can result in blackouts without any memories at all, no matter how hard one tries. Some people in blackouts do scary things they later regret they wouldn't do if sober. They don't regret it because they suddenly remember, they regret it because of what they did that was seen by others.

Some people in blackouts get taken advantage of.

What is too much alcohol differs among people, with some people much more sensitive than others.. It sounds like however much you drank was too much for you.