“Realize deeply that the present moment is all you have. Make the NOW the primary focus of your life.”-Eckhart Tolle
It is silly to waste time regretting the past, and it’s silly to obsess over the future and become anxious about it. All we should think about is this very moment. I say that because who knows what can happen next. That being said, save your energy for the now. Things change so suddenly so all that you were stressing about, may not even happen, so why waste time dwelling over it?