Absolutely. I tell my kids all the time that one only has so much energy, and that I choose to spend my energy on things I can actually put effort into changing while the things I have basically little or no bearing on are paid some attention, but I don't let them worry me too much.

"It is what it is" applies to so many modern world 'stresses'. Certainly makes life far easier to deal with and when the energy one does have is spent wisely, individual growth also trends upwards. Win win.