I just read this post......I have to say.....when I read EL's explanation of the driving thing, I thought the explanation was of the experience I had. It was a 2 lane rode that merged into one. The driver was behind me in the outside lane & speeded up so I couldn't get infront of him.....so I backed off & got behind him only to have to suddenly slam on my breaks because he was making a right turn

. Stupid idiot, could have just as easily backed off & stayed behind me to make his turn. I have a big truck that isn't easy to stop even with my ABS breaks. Not sure if he was trying to cause an accident
For me, that didn't anger me though.......after living with my husband for 33 years who angered me almost every day I lived with him....it built up so much I was like the filled glass where one more drop causes you to overflow. I got to the point that he didn't have to say anything & my anger would just blow up.....just the sight of him & I was seeing red. I never understood that anger to the point of seeing red until just the end of my time of living with him.
Because my anger at him was so great, my anger would overflow to everyone & everything that went wrong around me. Once I got away from the source of my anger, it's amazing how much I have calmed down to the point of not getting angry at much of anything unless it's really bad.....but I haven't run into anything that's that bad since I left him.
Maybe you have a source of anger that you aren't dealing with.....maybe if you were to look for the source.....deal with it, you might be able to find the control you need.....maybe you anger would go away also.