I agree it sounds like you look after and worry about everyone else. I suspect you won’t be up to doing so much of that during your treatment, but am also guessing you will do some care if your family no matter how tired you get.
I agree with everyone else here that now it is your time to focus on you and your treatment and to some extent you are going to have to let them get on with their lives and worries by themselves. I know this sounds harsh but what else can you do? You didn’t ask to get cancer.
My observations of some people with with mental illness is that they can have a strong will to survive and hopefully your family will survive despite their worries about you. I wish you the very best.
