I discovered (in tent at sub zero camp out) that I was provided these emotions as a guidance system to help me on my journey. So if people or things make me angry ..... correct the thing and or put some distance between the person (like my sister). So I don't think I try to manage per se more like acknowledge and decide how to proceed. I don't make big /important decisions when I'm heated.
I have boiled it down to good and bad....pain or joy. If something is continually making me feel bad then I must do something to feel better. Look back at a decision to see what or where I went wrong and make a coarse correction to feel better.