"Your mission is very simple. our mission is very simple. You have been chosen to live so as to demonstrate that You are NOT an ego. I repeat that I do not choose God’s channels wrongly." -A Course in Miracles
This is the simplest thing in the world to do since you are NOT an ego - the difficult thing is trying to be an ego, engaging in doubt, guilt, judgment and fear. Trying to be what you are not is hard indeed. But to be yourself as God created you is easy.