COPD and anger

There isn't really a catagory for my comment. I was "officially" diagnosed with COPD 9 years ago and was immediately put on oxygen therapy. I didn't really feel the need to use it unless I was doing something strenuous, however that changed 2 years ago. Since then I have required oxygen 24/7 and I am unable to do anything remotely defined as "living". For me, living with COPD is NOT living. I'm angry and just want it over with!