New here: Looking for others who have NSCLC and information

Hi my name is Tom and I was just diagnosed with NSCLC thay found a large tumor in My right lung besides the shortness of breath and pain in my right shoulder I would never known anything serious was wrong when I went to the doctor about my shoulder that's when thay found the tumor I had all the test PET, MRI, Cat scan, ets. The plan is Immunotherapy but thay needed DNA so in the meantime thay are going to put me on Chemo. If anyone could let me know what to expect iam at a loss and don't know anything about the disease and anything would be a help.
Thank You
Tom