To feel prolonged anger

I don't get angry often, but when I do I feel it longer than the average person. If someone made me mad I'll feel that all day, even if I seem calm. That anger usually burns at my insides. I'll hold it in to not start a fight. I know in the future it won't matter, it's just in the present time.

That being said, I'm trying to learn not to use my emotions in times of chaos. I want to be able to use logic and others perspectives instead of starting unnecessary conflict. I think it's because I don't get mad often that makes me struggle with putting logic before emotion.

Note: I know emotions and logical reasons are not opposite, I just think and react more emotionally, and need advice to put more logic into stressful situations.