There is always something to learn, provided you are willing to learn and are networking with the right people.
Successful people are willing to share their knowledge and help others succeed. The question is how to make successful people speak?
You can either learn from their mistakes, watching their actions or by asking them the questions.
You can watch their mistakes and actions simply by observing but to get them to answer your questions; you need to give them space, ask the right questions, listen to them, and let the talk flows. They have a wealth of knowledge and are willing to share, provided you are willing to listen to them.
How many successful people are you networked with? How often you connect with them? How useful is their knowledge to you?