Letting go of having to control everything (and everyone) lessens stress and increases our happiness quotient.
Here's an affirmation that will help to let go of the need to control every aspect of everything!
After doing what needs to be reasonably done, but allowing space for serendipity to enter in, light a candle, contemplate the affirmation, then get up and go about your day repeating the affirmation as often as it comes to mind...
"Every situation has an grand design within it. All we ever need do is allow things to unfold gently, peacefully, having faith that the Universe is a friendly, consciousness-filled space."