If you think about it, trading is always a losing game emotionally.
A stop usually means some kind of retracement, so I "feel" like I "lost" part of what I gained. A little voice says "I had enough signs to know I should have bailed early," even though I loyally followed my system.
After I exit properly and the trade continues to go my way, then I "feel" like I "lost" the additional profits or the little voice says "You failed to ride out your winners", even though I loyally followed my system.
Stupid little voice doesn't realize he makes no sense. I often end up with this ugly trade hangover anyway. The following has helped me:
1. I document the trade immediately in my trade journal. I discuss any lessons learned and any emotions I had during or after the trade. I try to replace any emotional reactions with a rational assessment of the trade. Usually I feel better afterwards given that I followed my plan, although I didn't make as much as I "expected."
2. I stop peeking at my profit/loss and just stick to my system. Unfortunately, with option spreads I often want to see the greeks reaction to the underlying so I end up peeking anyway. But I remind myself that my account will benefit more in the long run by just sticking to the plan. This is all about probabilities which require numerous trades. Short-term variations are unavoidable.
3. I enjoy the game, so I want to stay in it. Hitting singles is a lot of fun. I don't want any big losses to wreck my mind, and I don't want any big gains to turn me into a manic trade junkie. So instead I set forth to just follow my system and stay in the game. I try to avoid fantasies about how much I'll make in the future.
4. After I close some intense trades, I get the hell outta here. Over the river and thru the woods if I can. I always feel better later, that I stuck to proper execution and did not break my rules, regardless of the monetary outcome.
Repeating the process over and over helps silence my inner trading demons. If that doesn't work then I just go to this site
http://www.entityclearing.com/
cheers & lotsa luck