Many people would rather make their own mistakes, then learn from those who have already made them. We think we can learn everything by ourselves. Instead, seek out people who truly possess wisdom. Hang around them, and bring a whole list of questions to ask them at every possible opportunity. We need advisors.
Nobody builds a skyscraper without expert advice and a plan.
You'd never dream of using trial and error in the operating room. Look back at yourself 10 years ago. So now go talk to someone 10 years older than you. He must have something important to teach you. If you learned everything from everyone, you'd be one of the wisest people in the world.