No symptoms or signs

Hi All - I'm new to this!! I was just diagnosed with COPD but I have absolutely no signs - I breathe easy, no cough, etc.

I stopped smoking almost a year ago but the damage has been done - what suggestions do you have to slow down the progression- I'm sure I don't need medicine since there are no symptoms but I'm not sure. Will I be able to live to a ripe old age or is this very progressive?

I have an appointment with my GP next month to get more info!!

Thanks in advance 4 ur input!!