My Spouse’s Anger Issues

Please pray for my spouse. I’ve tried to be supportive but her anger is a problem for our entire family. She isn’t abusive, she loves her kids and me but she’s always sad, depressed and frustrated with nearly everything and it’s unhealthy for all of us. I don’t know what else to do except to keep praying. But even my prayers are becoming increasingly anger-filled and I don’t like that I’m demanding God to do something. I’m calling on other Christians to help carry this burden and lift this up to God so that my family can be lifted up and in turn be a blessing to those around us.