Here’s a fun video on anger management by Penn & Teller. It raises some valid concerns about weak points of anger management, but overall is pretty one-sided and more educational than balanced, objective reporting.
One of the most valid points the video makes is that venting anger (by beating pillows or other objects) doesn’t help to manage anger.
In fact, it increases increases the likelihood of a person getting angry again and being unable to manage their aggression.
So look for effective proven ways to control your anger - hypnotism therapy for anger management.