are not helpful. A more practical approach to failure is to say the 1st attempt at a new task is a rehearsal. When struggling with a new challenge, it does not help me to feel bad about the mistakes I make. So I decided the purpose of my 1st attempt is to give me ideas about how to make my 2nd attempt awesome. When I get too frustrated with a new task I tell myself "it's a rehearsal" and give myself permission to quit.
Trying the task again the next day accomplishes two things. My frustration has receded so I am calmer. And the mistakes I made the 1st time give me ideas about what to do differently. Calling something a rehearsal helps me succeed because it changes the way I think about what is happening to me.