Power in your hands - How do you develop your emotional intelligence?

Do you remember one day when you felt very tight ... How did you feel sad and see the world black in your eyes?! Do you remember one day when I was angry .. I was like blind, speaking inappropriate words, and behaving unacceptable?! Do you remember one day when love fills your heart towards someone ..?! It was just a mention of his name or hearing his voice equivalent to the world and what is in i...