Well done is better than well said.
Never complain and never explain.
By failing to prepare, you are preparing to fail.
I can, therefore I am.
Be gentle to all and stern with yourself.
Be thine own palace, or the world's thy jail.
Know or listen to those who know.
The most effective way to do it, is to do it.
Begin to be now what you will be hereafter.
Be kind whenever possible. It is always possible.
But to me the bottom line is the more education you can give yourself, and the more preparation you can do, the less chance of failing.