Hi Bree,
It's all about balance and learning to accept what a person's body will or will not be capable of handling. Some of us as certainly far more active than others, and some are able to stay active longer than others.
I'm currently in the middle of redefining what my limits are, and there are a few people here who have been very encouraging. They remind me of what I've known all along. I have CF, but CF doesn't have me.
If you'd like to learn more about me and the things that I do as part of my regular, adult life with CF, then click here:
<a target=_blank class=ftalternatingbarlinklarge href="http://livingwellwithCF.blogspot.com">Breathing Deeply: My Life with CF</a>