Time-poor. It's an apt description for even me, and my time management inabilities. Although, for me, it's more a problem of not enough to do than being too busy. Time management should be a course of study in schools, if it isn't already.
One can be as "free" as I am and still not step outside of themselves to appreciate all of it, I hope I can "find" the time to take your advice.
One appreciate what one has, life in general and other things...Gratitude is a powerful emotion.