Try to make yourself cry, transmute the anger to sadness, you'll find that they're very close. Cry as much as you can, as long as you can, play the saddest music you can find to assist you get the tears out.

Afterwards, go to church, talk to a priest, go to liturgy, participate in holy communion, because God, divine healing is in the Eucharist. It's the best help I can think of, speaking from experience.