Life can be quite unpredictable and unexpected losses can occur. You may lose a job and income, a friend, a cat or dog you love dearly, experience an illness and lose your sense of being strong and invincible, etc. Anger can be a first reaction because you prefer life to be predictable and you want to be in control. It's good to acknowledge your feelings and honor them. You can create more inner peace about your situation by accepting that you have limited control and come up with plans to cope.
I invite you to share your experiences with unexpected losses.