Hi JB,
Thanks for taking the time to write everything in such great detail. I will have to tell you that I am not qualified to give advice or guidance. I can only share my opinions.
Regarding "high could go higher" and "cut loss", these are things we hear people who trade the market using TA might say. They are not wrong but if we choose to learn the techniques of any school, we must learn them well.
I am not well versed in this school but I know that what the school teaches has worked for many people. Just have to follow the rules. For one thing, a stop loss is probably activated when prices fall 10% and not 50%. So, I guess you maybe didn't have enough practice and you didn't master the techniques. Perhaps, you did not have the discipline to follow the methods taught by this ......