Failure and mistakes always occur in daily work and life.
There is no life without failure or frustration. It means that there is no failure not to challenge anything.
Successful people make lots of failures.
Life is more overwhelming than going wrong. There are a lot of painful things.
By merely increasing the number of things I learned from mistake, I can feel a little positive and positive because I can think that "This is a mistake today but I can make use of this failure tomorrow!"
Now, put a diary every day, lets get back to yourself!