" Anxiety is fear about what may happen in the future, and it occurs only when the mind is imagining what the future may bring. But when your attention is on the here and now, the actions which need to be done in the present have their best chance of being successfully accomplished, and as a result the future will become the best possible present. "

― W. Timothy Gallwey , The Inner Game of Tennis: The Classic Guide to the Mental Side of Peak Performance