May I suggest simply sitting with that anger, breathing into it, feeling its power, perhaps even smiling to it, & allowing it to arise-&-fade as it will? You might even place a hand over your heart as a sign of compassion & lovingkindness for what you are experiencing. You could, in addition, realize that the anger you are feeling has been felt in one way or another by every human being who is alive today, who has ever lived, or likely will ever live. It is a part of our common heritage as human beings.