I'm so stressed? I really need help?

Well my auntie is anerexic and she weighs less than me I'm 12 she's 32 she's been in hospital once foz she was so skinny and she has to go in again my grandad has cancer which I'd bad my friend got hit by a car and died back in march he was only 13 and I'm struggling with my maths at school plzzzz help me