7) Trying to be perfect will kill you.
6) Making everyone happy is for the birds. Don’t worry about trying to make people happy. People will never be happy. You do you before your time runs out.
I didn't like this one, and don't agree with it. It doesn't cost you anything to try to make others happy, just don't kick yourself if it doesn't work. Some people truly will never be happy, true, but others are.