Successful traders fail because they cannot let go of what has worked in the past to discover and develop fresh opportunity going forward. All edges in markets have expiration dates. Eventually they are discovered, exploited, and lose their unique value. The successful trader is not one with an edge, but one who has developed the ability to cultivate new and different edges.
But that takes the ability to embrace uncertainty as well as the passion for learning new things. Trading is not a journey to a destination. It is a continuous process of evolution. If we don't love change, change surely will leave us behind. In developing the new, we renew ourselves.