How hard is it for you to control your emotion? Once or twice I find it hard to control my emotion. This doesn't mean that I show people what feelings I am having at certain moments but the hard effort that I often had when trying to hide the feelings I shouldn't show at certain moments. I think there are times when we have to be able to control our emotions, although there are times wen we have to be able to show trully our emotion and how we feel. For those moments that require us to control our emotions, here's an article I found from WikiHow about controling your emotion.

How to Control Your Emotions

Put your emotions into a "box theory". This is when you get whenever you feel sad or hyper. Make an imaginary box and visualize your emotions going into the box and the lid being closed. This is good because it allows you to forget about those emotions for a while, but beware not to let them fester in there because when they escape there will be an emotional over load and you wont know what to do. This is a short term emotional control for quick fix situational changes.
Control your emotions mentally. Mental control is the best if you are remembering a situation or are in a situation where you need to keep in control. An example would be a relationship break up. Emotions are part of your state of mind, and with enough mental control you can choose how you feel. Say to yourself 'actually I don't want to feel like this, I want to feel like that', and although the other emotion may still linger it will die down and eventually you won't feel it as much.
Start the day in a positive way. Nobody wakes up and thinks, "Today I'm going to have a really awful day". Most people wake up and don't even think about the day ahead. Try this: "Today is going to be a good day?" This way, you start the day having a positive outlook on life. Try being as nice and positive to everybody and set yourself simple little tasks during the day, for example, "Today, I shall eat five pieces of healthy fruit or vegetables" or "I shall smile at that boy or girl I have liked for ages".
Talk about how you feel. The best way to solve something that's upsetting you is talking to someone, even if it's your dog. Talking about things helps to make things clearer and tends to help your brain sort out situations.
Scream. Find a wide, open space where you are not likely to get a lot of attention and shout as loud as you can.
Just talk to yourself when you feel more calm. When you feel that you can talk to nobody, just talk to yourself, and maybe that would help you feel more relaxed.
Punch a pillow. When you are angry, or you need to let your emotions out privately, just go into a closed room, where nobody will bother you, and let your stress come out sometimes. Punch a pillow, and it will slowly put you in a calm position.
Detach yourself. If you are close to emotional overload or don't want anyone to know how your feeling; take a step back from yourself and your emotions. Pretend you're looking at them from someone else's point of view or just shove them deep down and try to forget about them.