REFLECTION

Someone once said, "fail early and make mistakes early, then realise your mistakes and correct them early; that will save you from making expensive mistakes in the future". 

Some people failed earlier and became wiser earlier, by learning from their past failures. So, stop hating yourself because you failed; the good news is, you have become wiser.

Also, try and learn from other people's failures. 

As my late principal would say " failure is no crime, but low aim".