Chemo for esophagus cancer: Any advice on things I should or not do?

I was recently diagnosed with Adenocarcinoma of the esophagus with her2 “positive”. I’ve been on one chemo pill and one infusion. The pills gave me ulcers in my colon along with every other side effect and I ended up in the ICU for 2 nights- 7 night hospital stay. Since then they haven’t started me on the chemo pills again (they said I need a break to heal) so I’m only on the infusion. My follow up pet scan is wed and I’m scared that only being on the one infusion just wasn’t enough. I’m trying to stay positive. Anyone have any advice as far as extra supplements or things I should or shouldn’t do. As of now I’m walking, take curcumin, vit d, acupuncture, cbd oil, that’s really it. Any positive info would be appreciated.