I was criticized by people to the point (and had a total inability to save face afterwards) that my coping mechanism was and still is to be like "okay whatever you're right, I am stupid/ugly/a failure. There are 3 ways to combat this.

1 - realize that that person's outlook isn't right. The critique doesn't have a credible handle on whatever they are spouting.

2 -Other people aren't smarter, they are better at making other's think they got it right. Minimize your faults or make it sound like some kind of advantage.

3 - Actually be as perfect as possible in order to be above criticism.