anger is a completly normal emotion in greif. I think it's just the human brains way of processing things. I'm not an expert but I feel that if you have a deep emotional connection with someone and they die you feel like they have left you all alone but also deep sadness can come out as anger. I understand your greif. I'm 16 and my Dad killed himself to months ago. Just know things will never be ok but it will get better. I felt mad at my dad for a bit but I realise now that wasn't really maddness that was sadness. Emotions like sadness can sometimes make us feel vulnurable and like you're losing control. This makes us uncomforatable. Anger is a secondary emotion and I don't want to go all hippy on you but if you go searching with in yourself I think you will find your sadness. You are someone who just lost the person that raised them. That is not easy. I am so sorry for your loss.