Looking for a bit of inspiration?
Check out this article on the Ironman website about a friend and fellow member of OutRival Racing. In November Chris Gause became the oldest woman to ever finish Ironman Florida (in any year) and I have also been told is the oldest female finisher of any full Ironman race in the continental U.S.
You might be thinking that an athlete of this distinction has a lifetime of athleticism behind her. However, that's not true as she really began her training and racing in 2005.
Way to go, Chris!