Below are some tips I shared recently at my Broken Psalms presention. These can all be found in Getting Out of Bed in the Morning.
Seclude yourself in a room where no one can hear you. Set a timer for three minutes and let yourself think about your anger. Scream, rant, and rave. When the timer dings, stand up, take a breath, and then partake in another action. Each day, anger may build up. Allow yourself time to deal with it and release it.
Pretend Jesus is your walking partner today. Envision Him as a person dressed in exercise gear. His strides match yours. What does He say to you? What do you say to Him?
Keep a journal. Studies show writing reduces stress and if you write at least five times a week for twenty minutes you will notice the affects. Also, try to envision your current situation as you would like to see it. Picture your kids getting along with your new spouse. Imagine peaceful conversations and the acceptance of each other. Pray for this to take place and keep praying that one day it will.
List your blessings—the things you are grateful for, the people who are in your life, the experiences you have enjoyed, the hobbies that bring you comfort. Keep a running list. Keep it by your beside and add to it each day.