An archer can notch their arrow and draw their bow to the best of their ability, but once the arrow has flown, they can only wait to see if it hits the target. The intention is under control, as is the initial act of setting the arrow in motion, but the result is ultimately down to Fate.The target on which we fix our gaze, the outcome of any action, is always in the future. But our INTENTION to achieve exists in the present moment.

Donald Robertson, Stoicism and the Art of Happiness
James Clear, Atomic Habits
Wiki for Seneca
Rich Roll podcast