3. Concentrate on your influence

You can't force things to go your way. But you can have a strong influence.

So while you can’t make your child be a good student, you can give him the tools he needs to do his best. And while you can’t force people to have fun at a party, you can create the best party atmosphere possible.

To have the most influence, however, you need to be in control of your behavior. So do your best and keep a good attitude.

When you have concerns about someone else's choices, share your opinion, but only share it once. Don't try to fix people who don't want to be fixed.