I'm sorry for the loss of your family members, it's always hard when you lose someone you love.
Don't beat yourself up niteblume, you can only do what you can do and if they don't listen it's not your fault, at least you tried.
I agree with you though, about getting healthy, that will speak volumes to them about natural healing. Once they see you healing using nothing but natural protocols, you know what they say eh? Seeing is believing, I'm sad to say it but most times it's true.