A quote I thought of today that I wanted to write down. (Well, it was more simple, but I wanted to expand on it)
"Your emotions are like a beast. Some are friendly and affectionate, while others can be vicious and abusive. In order to be at emotional peace, you shouldn't cage up the beast. It will only get more violent. Let it be free, but tame it, so it can't hurt you or others."
Basically, the gist is, don't bottle your emotions since they'll just feel worse. Find a way to regulate those emotions, while being able to stay in control.
Didn't wanna forget that. And this is basically what I'm having to learn nowadays, along with the technique of being "mindful" - observing everything going on in my mind, body and emotions.