I am sorry that you feel bad.
I do believe that we all go through an angry phase. There are many many phases, our bodies and minds are healing from all the damage we have done. We are learning to FEEL emotions rather than numb them.
The most encouraging thing I can say is it will pass. Try a gratitude list.... what are you thankful for and happy for each day. That may help relieve the anger some... it did for me.
You will get over the hump, stay strong!