Instead of saying emotions, why not say be disciplined?
Learn when to take losses and also when to stay in profits.
Instead of battling with your emotions, simply understand when you are in profit, and when you are in loss.
In short, learning is still the key. Even with strong emotional control if we are lacking knowledge in the field of trading, we are bound to fail. Learning to know the do's and don'ts of trading will greatly enhance our success. If we educate ourselves then we will know that controlling emotion is one of the major reasons why people are successful in trading thus, we will try to opt for it and strengthen the mind to not submit to our emotions.