Don't mean to offer consolation or critique. Just expressing personal viewpoint, borne out of experience
If dabbling in systems has taught me anything, its this ...... However much we refine our calculations and quantify the past to base our anticipation for the future, there's absolutely little guarantee that the future is going to respect those 'quantifications'. Hence, even though one may strive towards a perfect system, one has to also understand that while any system may become better or approach closer, no system will ever reach that ideal (the whys and wherefores are themselves a (vast) separate topic for discussion). Therefore a trader is not in the business of predicting but of taking action (managing trade) as per prevalent market conditions.
The 'better' decisions are borne out of the mindset of managing risk rather than a focus on 'anticipated' profits! It is good to have a system for provision of a stable, logical finite framework for trade assessment & trade execution but since no system can ideally cater for every market condition, it naturally follows that
traders not be slaves of the system but also learn to develop astute discretion. While newbies may tend to 'overuse' this discretion, the higher order trader can better assess when to step in and when to lay off.
The wisdom to know when to exercise this 'discretion' is borne out of enhanced market understanding & experience. If you don't believe me then go ahead and run some step forward simulation on 'V Reversals'. Whether you use a system based on price action or indicators, I can bet you that the most convincing of setups/ continuations undergo radical transformation in complexion within a few tics of violent expansion which, let alone react to, hardly any system can detect unfailingly at the very outset.
Trades are not only ended when they hit a stoploss or a theoretical profit target,
but are also terminated when a trader assesses that the prevalent market conditions could be exploited for movement adverse to the trade. In your case you took the decision based on prevalent volatility and proximity to the closing bell. Which is fair enough! The fact that in doing so, you missed out on additional profit is just the way that things pan out sometimes. If I may jog your memory, just sometime back you were extremely distraught about making a great deal in the early sessions and ending up giving almost all of it back in the closing session! That time you didn't intervene in the system and well, that's just the way events happened to pan out that time!!! The point is - both times you took a decision based upon your assessment of the market. The second decision was probably better as it was borne out of a desire to manage risk (well.. also to protect profit - will come to that by and by
If the market didn't play ball, so be it. It doesn't make the decision wrong at that point in time! Remember that
there's absolutely little guarantee that the future is going to respect those 'quantifications'
It is the inescapable lot of any trader that he/ she can never be completely happy!!! There will always be that bit of money which he/ she ended up leaving on the table (early or late
. However much we pay lip service to being trend followers but the truth is that in some corner of every trader's being (yes, even those that ought to know better
, there is always a burning desire to be able to catch the absolute top & bottom (or as close to it as is practically/ humanly/ godly
possible)
each & every time. Hence complete satisfaction is forever a chimera
The second aspect is that even when a trader starts becoming consistently profitable, it is difficult to break the shackles of earlier 'modest' beginnings!!! It is very difficult to be able to (initially) achieve complete comfort with increase in trade size w.r.t the increase in capital. As per your own admission, you were dealing with 'heavyweight' trade size. This aspect, possibly, triggered simultaneous dual emotions of greed as well as fear! Greed - to protect substantial profits. Fear - of seeing the 'notional profit' evaporate, if the market chose to move the other way.
Had you not put on such a size, it is possible that you may have not entertained thoughts of trade closure with such urgency!!!
Well..... my advice - Better get used to the increased trade size
. Don't rue trade closures if you happen to leave money on the table, remember that you are also pocketing a large chunk of it, in the bargain
In short -
Don't sweat it!!!
If you'd like to revisit your post for the purpose of evaluation for betterment. Let the lesson be, that from the aspect of risk management the decision was not entirely wrong (considering the market environment) AND that you need to consciously train your mind to achieve comfort factor with larger trade size
HTH