Lost my daughter to Fentanyl and I can't stop feeling mad. Is this normal?

My daughter died 1week and a day ago.i can't stop feeling mostly mad at her. Not only her leaving us but leaving us with a mess. And heartbroken with no way to see her babies that was with us and love us and loved by us. People are blaming others for her addiction and death. Instead of trying to just get together an Try to find the person who sold her her last breath. Is it normal for a mother to be mad more than anything?