Even more difficult to get a lesson out of a bad situation, if you don't seem to be learning nuttin (or at least hardly nuttin).
I learned to not overinvest*. That's the most important lesson for me.
*That applies to everything and every asset. Stay mostly cash, don't invest more than you could afford to lose. If you can sleep tight at night, you are doing it right. I couldn't sleep that night.
I am not trying to be overly critical of you on a personal level because I understand that each person has to learn at their own rate. I also understand that I likely come off as overly critical.
In any event, I do appreciate that you are willing to share information, and I appreciate that you believe that you may have learned some things from the whole situation, including NOT overly investing..
And, sure, maybe you can only learn one thing at a time, and that is fair to a certain extent.