Do you let your emotions control you or are you capable of controlling them adequately???
I used to have a problem with my emotions controlling me, but now I mostly always in control of them. I think it's when I started to become more cognizant of them that I was able to control them. That's not to say that I can instantly make myself happy or joyful, but when I notice that I'm feeling a negative emotion I can tone it down quite a bit and sometimes make it disappear completely.