Struggling with Anger and Motivation

Recently, I've noticed that I have just given up on me and those around me. I get these constant spurts of anger and I cant control it. Not to mention my friend's have noticed this issue but when they try to bring it up I just get defensive and I get more mad. When I calm down I realize what I did wrong and that anger turns to sadness. It's my fault I got mad, and everyone probably thinks I'm this rude person. I've had anger management classes in the past and I'm thinking of going back and doing it again. But I have no motiviation to even get up from my bed. No motiviation to do simple tasks. My sleep schedule has plummeted, I cant seem to shape it to something decent. I don't feel like getting off my bed in the mornings, then I get mad at myself for being so lazy and the whole process repeats. I dont know what has happened to me. Can I get someone's input?