Making mistakes & failing is the long way to get clarity. I took roughly 21 years to get clarity through this way. It was a waste of time because the clarity was not related to what I was doing but what I was not doing. We don't know what we don't know. But strangely all inventions were made using this method.
Speaking to people & taking advice from others is not a great method too because what most people advise may not be right for you. In-fact most people advise what they could not achieve which may not be right for them too.
Thinking & Analysing things is another method that seldom works. Again we get biased by our thinking. Have you heard of Paralysis by Analysis.
Intuition or premonition is when you know. It is knowing without doing or thinking or speaking. It is believing & being in touch with the universe. It is something we are all born with but we lose over time.
What about you?