Prepare even without perfect estimates

We believe coaching is often the best approach but it's not always the case. You might find an average coach and make little progress or you could have an exceptional coach and become incredibly skilled. For most of our learning, self-study is essential but it doesn't seem to work for many people. Why is this? Sometimes the most perplexing question has a surprisingly simple answer. Explore why self-study is so effective for some while others struggle to make much progress.