In the past, I learned the most from reviewing my mistakes. For me it is a hard habit to keep up, because my losses are more painful than the wins -- a flaw in my character that I must correct.
I've decided to start a small blog, a public record of my analysis. I'll try to be as honest as possible when reviewing my games; with any luck this will encourage me to be more thoughtful in my moves, and to play fewer games -- focusing on quality over quantity, as analyzing losses will take more time.
You can find my thoughts here, once I start. http://www.chess.com/blog/Haiku575
. I won't bother the forums about this further.