Need some tips for managing at home

Hi all 😊 I was recently diagnosed with the chronic bronchitis part of COPD and it’s hit so hard so quick! I’m exhausted after doing little things and small tasks are almost impossible. My husband doesn’t know how to cook so I have to cook for him and I just can’t at times . I also am unable to cook for myself as well and he can’t help with that either so I go without food . I’m so frustrated with all of it! My cough won’t go away even with all of the cough meds and I’m just going nuts on how to stop it ! I see my pulmonologist the 26th . I don’t know what I need since some people need dehumidifiers , some steam vaporizers and some cool humidifiers. Can anyone help me out ? Thanks in advance!