Read all the fitness quotes stated by those who were fit and ultimately great because of amazing health standards that they derived.
Busy is never an excuse to stay fit. From working out. Most of us kick the idea of being physically fit on its face citing unwarranted reasons in the form of busy schedules and stressful lifestyles. Being physically healthy is as important as being super busy.
"You have to push past your perceived limits, push past that point you thought was as far as you can go.” - Drew Brees