Forty is the old age of youth; fifty is the youth of old age.

Every stage of life is the end of one thing and the start of another at the same time. The years that feel like a decline from what came before are also the opening of something that has not been tried yet, and which of the two you notice depends mostly on where you are standing. Treating the middle as pure loss makes it into pure loss.

Take whatever age you are and describe it as a beginning rather than a diminishment. What would you start if you assumed this were early rather than late? Begin the smallest version of that this month.