"I never thought I was wasted, but I probably was"

This quote by Keith Richards assesses his past and the options he has made in life. He is acknowledging that he may have made some mistakes and taken some risks that were not always the best decisions. He is also expressing a sense of regret for the options he has made, but at the exact same time, he is not beating himself up for it. He is accepting that he might have been "wasted" in the past, however he is not residence on it. Instead, he is looking forward and concentrating on today. This quote is a suggestion that it is necessary to learn from our mistakes and not dwell on the past. It is likewise a pointer that it is possible to move forward and make better choices in the future.