You think it's possible to help someone with his anger management even if he doesn't want to cooperate?

Kahit pa pumayag sya sa mga counseling, kapag bumalik yung mga thoughts nya na nag-tritrigger ng anger nya, mababalewala rin ang lahat. I, myself, have anger management issues. But I am trying my best to work on it. Pero sa tingin ko, hindi yun totally nawawala.