I find my attention span to be short and somewhat scattered. On some days I may think I have the patience and passion to do something I love and on other days I have no interest in that subject.
I clearly just swing from one passion to the next as I were tarzan or George of the jungle. I know I am still passionate about those things, just that the passion comes and goes.
So I do my best to enjoy everything I do including the things I do for a short amount of time.