I have had COPD for 27 years, and my SP stays at around 95-96. I am not on 02, and it has definitely gotten worse, but I don't think about it killing me. I get up and do whatever I can, though much slower than I did in my 70s. I will be 87 in a few weeks. I look to live on into my 90s. It is all in the attitude, I will say I, or rather my wife will, I am getting grumpier