This was one the main questions I had for Hubert Senters and
John Carter when I went down there almost 1 year ago.
I asked HS specifically what he was thinking prior to a trade, while in a trade and after the trade.
HS said to me that he tricks his head into thinking he's gonna be right before entry. That did not work for me, I myself need to think in terms of am I willing to lose on this trade. I have a set amount in my head already. Each market is different.
When I am in a trade, I'll start looking for clues if the trade will work out or not. There is nothing specific other than the pace at which trades are happening and the relationship it has to price and TICKs and volume, in other words, tape reading. My exit orders are already placed so there is less to focus on other than moving up the stop when its time.
Some possible clues that the trade may not work out. TICKS go lower part of range, price does not, take a look at volume. When they don't confirm, its a "oh crap" this trade may not work out, but stranger things have happened so I don't mess with it, I just say to myself the stop order is in place and let it work.
If the clues show me this trade may indeed work out, then its time to move up the stop. Some possible clues include price and TICKS confirming their move, both are making highs or at least moving together in proportion. If the target gets hit, great, but I generally get a little anxious when the price trades near it. Why the limit may not get filled, then its decision time, get out or see if it will trade through your limit or risk it taking your stop out. There is no cut and dry method each time, you make your decision and live with it.
You need to accept the fact price may trade even further in your direction. Either have a scale out technique or just live with the fact price progressed WITHOUT you. We each come to terms with that at some point, its just a matter of when not how because everyone is different, but you need to come to terms with this possibility.
Now, the good part, post trade, win or lose. I think what I did right and wrong with the trade and take a break for about 10 minutes. After my 10 minute mental break, if it was a loser and I see a signal, the next thought is "Do I dig myself deeper in the hole?" If I accept the possibility of loss,then I enter the trade, if I don't at that moment, I pass up until I do accept the possibility of loss. If the prior trade was a winner, I ask myself the same quesiton.
Even if you have a mechanical exit, it all involves accepting the possibility of loss. Loss can be defined as a loss of one own's capital or loss of the daily profits accumulated from winning trades.
Now this is how you dig yourself into a deep hole, not accepting loss. That is how new traders blow their accounts in months or cut your account in half in a matter of days.
Understanding how you handle and deal with loss is more important in trading then entry set-ups, its just not as sexy when you think about it.