That kind of rejection does not 'go away'. I had some anger stuff going on for quite a while, but over time am managing to turn that around.

Although this may not apply in your case, in mine I came to understand that the person that I was angry with was themselves not well. The person doing that in fact came from a background that almost mirrors what you are saying (an alcoholic abusive father, followed by terrible fostering). Over time, I have managed to forgive them becuase I understand that the main difference is that that person never recognised that they had a problem, and as a result were similarly aggressive and unpleasant to be around at times.

Noone would make an active choice to die at 39 from cirrhosis. It does not make what he did condoneable, but had he not got to that stage of alcoholism with the affect that it has on the brain, he could have been a different person. It may be over time you get rid of your anger, as the only person the anger damages is you. It interrupts your day, changes how you are around other people etc. It won't happen tomorrow, but I now rarely have anger. Every day you do have anger, the situation is beating you, as it is affecting your life still now. I hope to keep mine under control at least, gone at best.