Can we move our perspective from 'exercise is no fun' to 'it is a privilege to exercise'

I can look at my life and say that I have been truly blessed to have made exercise a big habit in my life since college. I recognized a long time ago that it is much more difficult to get back in to the habit than to never stop the habit of exercise.
This got even more difficult as I grew older, had kids, and got a real job (along with a real mortgage and many other real bills). The "life" that has happened now drives me to get up very early every day just to fit exercise into my busy schedule. On my way stumbling out of bed, quietly leaving the house, and making my 3.4 mile drive to the gym, I can EASILY be very grumpy. My attitudes can focus on my exhausting AND all the stuff I have yet to be responsible for the rest of the day!
How can we find gratitude in these moments? Well, for my today, I can start with being grateful that I am even physically capable of exercising, I can be grateful that I am not traveling today on business, I can be grateful I can afford the $34.75 bill, I can be grateful that I have kept my weight down my whole life because of my sacrifices early in the mornings, I can be grateful that I have a car that takes me safely to and from the gym, I can be grateful I get to see herds of deer in my neighborhood each morning, reminding that I am not truly ever alone and of the glories of God in all of His creation... and on and on.
I hope you can read this and apply something similar to help you develop the difficult discipline that a lifetime routine of exercise truly requires (despite what all those TV commercials promise!). God bless...