Truly speaking is very difficult to control and restrain my emotions and probably most of the times I can not. Maybe I have to be trained to be cool in some way and perhaps the the best option is to set goals in profit and loss and follow them every time
Expectations would have to be set first in order for you to have more control. If you're expecting to get a huge profit without the possibility of a loss, then you're well primed for a disappointing outcome and most likely would lose focus on your strategy. Don't expect too much but have a plan to meet your target and always tell yourself that there is a possibility to lose and be prepared to accept it.