@Marco I am glad you have never had a hulk day and maybe you are lucky that your natural personality may not lead to them. I can only speak for myself in that when I have lost control and had a "hulk" day; the emotional wreckage after is far worse on me than the financial damage. While I do not like the financial damage, I caused on myself; it is not a sum of money that is so great it will affect my life (due to the small risk I am currently trading). It is my emotions of "revenge/getting it back/etc" that COMPLETLY took over (Dr Reid refers to this as our monkey mind). I have children and sometimes I have lost my temper on them & yell at them. This is also a loss of emotional control on my part (even if they deserved it). I feel badly about that too after, but not as badly as I feel when I have hulked out. The children provoked me and I do not harm them emotionally; I just get a little too fired up. The days I have hulked; it is like my mind has lost all reason and rationale. I am provoked because (like Mark says) I had expectations & those expectations weren't met - that is a mistake. I actually find it rather embarrassing, but I share this openly in hopes it could help others. My last example and I am not sure it is a good one, but I did think it after the 1st time I LOST control - it was like drinking too much & the next day your friends tell you about something you said/did...maybe you cannot even recall, but all you feel is embarrassed and terrible you said/did this thing that in your right mind you would not have done...hulkng out feels a little like that to me (or it did at the time).
I understand that feeling of "leaving money on the table"... that is actually more my issue than the hulking out (although I have experienced hulking out and it is not fun). I hope to never again experience hulk & am working to further develop the right mindset and strategic game to be able to better hold my winners. Without knowing more, I am not sure if your issues are technical or psychological. I can speak again for myself in that I had to grow in both areas and while I have made improvements in both areas in the past year; I still have road ahead to grow in both areas. I think if you asked a lot of people, they would say the same thing. Thank you for sharing and I am glad you are in book club to grow in your psych trading game:)