How do I keep going

 How do i keep going on when I know my husband is not making the best choices .
He will not go to a cancer center insists on going to a local Dr. that has no buisness treating cancer .
I have worried , stressed cried over this .I begged him to go to another Dr and oncologists . He will not listen .
I  know I am the one everyone will blame for him not making better choices . I do not want to be left alone . Sooner  than needed because of his poor choice in Drs.
Nor do I want to watch the love of my life throw money at this Dr. and not have good care . everytime I turn around there is anothe bill this dr. only cares about money  not my husband .The bills make me so angry  as we have insurance the ins. pays we pay copay Dr. still bills for more
 
I know how to fight . I do not understand the denial , the  whatever attitude .