Yes, I believe meditation would be useful for you. There are many kinds of meditation, and I have experience only on very basic "sitting". Others have suggested developing compassion, and I know some have found compassion meditation helpful in developing that, but I don't have the first-hand experience.

I have found meditation to help me to stay calm in situations, and even if I am about to get angry, to become aware of it in situations, so I can remove myself from situation before acting. And also to calm down more quickly. When you can process the criticism from a better place in yourself.

Also, I have found tai chi to be have similar effect on me.