It
is possible to learn to manage strong emotions. That's a skill that can be acquired.
One of the things I dislike about giving people psych dx's and telling them they have a broken brain is that it lets them off the hook as far as working on skills. You say you get mad because of your symptoms and life in general. I say young men get mad. They learn how to manage their emotions in such a way that they don't hurt others or themselves. Otherwise they have very unhappy lives.