Do what you know until you know better?

Also to know is, do the best you can until you know better then when you know better do better meaning?

It means that people often make mistakes because they don't know the right way to do something. Once they understand (“know better”) they can change their actions (“do better”).

Herein, who said do the best you can until you know better then when you know better do better?

Maya Angelou

I Got My Own Back You have to be able to rely on yourself.