It’s very important to take care of your mental health along with the physical. Perhaps an anti-depressant might help you and some talk therapy. Try https://www.cancersupportcommunity.org/. Maybe they have some groups in your area. I’m in Phoenix and they have zoom meetings and other events to help cancer patients and their caregivers.

I’m stage 1B. Right upper lobe removed in April. Only taking Tagrisso, which is now considered the first line treatment for Stage 1, not chemo or immunotherapy.

Best of luck to you.