Caring for my husband with gastric and oephagul cancer that'd spread to liver adrenal glands and bones

Hi all this is my first post as I am struggling so much and do not know how I can further help or support my husband.

He was diagnosed last Nocember. His only option is chemo to get it to a manageable state. He gas had 6 chemo sessions. Ge trued 1 immunotherapy but it did not react well to him and made him really ill.

My husbands main struggle is eating despite having a stent fitted into his oesophagus. He is losing weight fast. But struggling with the replacement drinks and shakes.

I don't know what to do. I am really scared.