God grant me the serenity to accept the things I cannot change,
the courage to change the things I can
and the wisdom to know the difference!

This helped me especially at times when I wanted someones behavior to change.  It helped me realize that maybe I cannot change someones behavior; (like my childrens) but I could change my responses to the behavior.  It was hard to remember this so I had to concentrate on the prayer.
Remember you are not perfect and it takes time to cgange; not just for you but anyone else s behavior you want to change.  Patience and communication is key.  You cannot place blame or it will shut down any efforts you are trying to achieve.  Maybe it will help you with what you are dealing with today.  God Bless you.