You learn what not to do from your mistakes. But what to do and how to do things, we learn from our successes. The latter give us motivation and real understanding of what works.
Never look at others’ mistakes.
It’s said that the wise man learns from the mistakes of the others. This is nonsense. Others’ failures are just their failures; you have nothing to do with them.
Learn from your successes, not from mistakes.
Our success shows us what works and what we should concentrate on.