Don't misunderstand. I'm not saying beat yourself up. You're grieving and some depression is part of that...just be clear what is actually the grief and what is misplaced anger directed at yourself or the situation. It's second nature for me to direct my anger back at myself and that's a no win for anyone.
"You know, it's times like these when I realize what a superhero I am." Tony Stark/Iron Man
“Focus on what you can do, then do it with all your heart.” Lois Wilson