Even more important is the right attitude. October 13, 1990, I had a major attitude adjustment diving solo. I was damned good and I knew it. It was my 760th dive, my 208th solo dive, all of them without a problem I couldn't easily solve. I'd been cutting corners and taking chances for months. Why not? I was so damned good I could get away with it. Before the dive was over I knew being good was no substitute for being careful. Before the dive was over I thought I was dead. I was able to keep my head, solve the many problems I encountered (all of them my own stupid fault) and surface safely. That one dive changed me. It changed me more than all the dives before or since. I've made over 1000 dives since that day, over 300 of them solo, but through all those dives, I've remembered not to cut corners, not to take stupid chances, that attitude is essential to coming back alive.
Rick, you ask, "Why would you tell on yourself?" Because it might keep someone else from making the same stupid mistakes.